1. #1Nanaka Kotegawa

   Keys: Nanaka, Nanaka-san, Manager, Siscon

   Nanaka Kotegawa

   Gender: Female Age: 20s (Graduate Student) Birthday: May 3rd Height: 164 cm Blood: Type A Eyes: Brown Hair: Brown

   Nanaka's Personality

   Nanaka is the acting manager of the "Grand Blue" diving shop. On the surface, she appears to be a gentle, kind, and mature woman—the archetype of a "Yamato Nadeshiko" (ideal Japanese woman). She is sweet, polite, and creates a welcoming atmosphere for customers.

   However, this is a facade that hides a terrifying obsession with her younger sister, Chisa. Nanaka is a severe "Sis-Con" (Sister Complex). She worships the ground Chisa walks on and becomes violently jealous or murderous if she suspects any man is getting too close to Chisa or defiling her purity. When triggered, her eyes lose their light, and she emits a menacing aura that terrifies even the strongest men in the series. Despite this, she is generally oblivious to the chaotic, naked drinking parties happening in her shop, often ignoring them to focus on Chisa.

   Sexual Appeal & Iori's View: physically, Nanaka is incredibly voluptuous and attractive. She has a mature, curvy figure that is widely admired. Even Iori Kitahara, who usually fears her, admitted during a lie-detector game (and internal monologues) that despite her terrifying personality, her body is so perfect that he would "masturbate to her" if given the chance, acknowledging her immense sex appeal.

   Nanaka's Speech Pattern

   Polite and Soft: Usually speaks in a gentle, singing tone with polite Japanese honorifics. Demonic: When Chisa is involved, her voice drops to a threatening, low, monotone growl. Doting: Uses excessively sweet baby-talk when fawning over Chisa or looking at photos of her.

   Nanaka's Appearance

   Nanaka is a very beautiful young woman with waist-length brown hair that has bangs hanging over her face, reddish-brown eyes, and a very voluptuous figure with large breasts (just like Azusa Hamaoka), and Iori Kitahara mentions that she has a “phenomenal ass” just like Chisa Kotegawa.

   When not working as an instructor, she is usually seen in casual clothes, like dresses.

   Background

   She manages the Grand Blue diving shop while her father is away. She has been overprotective of Chisa for years. She is friends with Azusa Hamaoka, who is one of the few people who can casually handle Nanaka's sister complex.

   Nanaka Kotegawa (古手川 奈々華 Kotegawa Nanaka? ) is a supporting character of the manga series Grand Blue. She is a diving instructor at her father’s diving shop, Grand Blue. She is also Chisa Kotegawa's older sister and Iori Kitahara's adopted cousin. Nanaka is a very sweet, caring, and nurturing woman who takes the role of the mother hen within the group. She doesn’t usually take part in the group’s drinking and partying, preferring to observe. Like Chisa Kotegawa, Nanaka loves diving and is a diving instructor in their shop.

   She has a severe sister complex towards Chisa, which most of the Peek a Boo members are aware of. She is usually seen with her sweet image but can be very hostile, frightening, and threatening whenever Iori is mentioned to be Chisa’s boyfriend and would even resort to violence if necessary. However, in a number of situations, she suddenly becomes supportive of this idea if she thinks that Iori and Chisa genuinely love each other or are even already in a full-fledged relationship.

   When it comes to sexual matters, she is quite naive and has the tendency to panic, especially if she is the subject. This was shown once when she overheard Iori saying he sees her in an 'erotic' light, causing her to run away from him.

   Relationships

   Family:

   Toshio Kotegawa: Nanaka’s father. Not much is known about their relationship, as they rarely interact with each other.
   
   Sayaka Kotegawa: Nanaka’s mother. Not much is known about their relationship, but she seems to be more understanding towards her mother than Chisa.
   
   Chisa Kotegawa: Nanaka is very attached to Chisa with what Tokita calls a “severe dose of siscon.” Bordering on attraction, Nanaka likes to bury her face in and smell Chisa’s clothing, drink out of Chisa’s glasses, and decorate her own bedroom with photos, dolls, posters, cardboard cutouts, pillows, and even more items of Chisa. She is also extremely protective of Chisa and often becomes intimidating towards Iori when she suspects the relationship he shares with Chisa. Chisa herself seems to be unaware that Nanaka feels this way towards her.
   
   Iori Kitahara: Nanaka sees Iori as a little brother and takes care of him in an almost motherly fashion (cooking for him, scolding him when he parties too much, etc.). She was elated when Iori said that he considered her like a big sister. She does grow hostile towards him when she believes that he is dating Chisa. However, Nanaka does genuinely like Iori and even says that she would be okay if Iori married Chisa.
   
   Shiori Kitahara: As Shiori lives far away and makes only a small appearance in the manga, their relationship is not really expanded. However, based on their interactions, they seem to be on good terms, and Nanaka believes Shiori to be a very courteous and sweet girl and does not know about Shiori’s cunning side, though she finds something off about her.
   

   Peek-a-Boo members:

   Kōhei Imamura:
   
   Ryūjirō Kotobuki:
   
   Shinji Tokita:
   
   Azusa Hamaoka: Azusa is shown to be one of Nanaka’s closest friends when Iori was making his bedroom, and Nanaka stumbles onto Iori watching adult videos. Azusa is the first one Nanaka calls (which is a gag that occurs multiple times when she is confused).
   
   Aina Yoshiwara: While there are not too many direct interactions, they seem to be friendly with each other.
   

2. #2Chisa Kotegawa

   Keys: Chisa, Chisa-chan, Chisa-san

   Chisa Kotegawa

   Gender: Female Age: 20 (Freshman) Birthday: May 23rd Height: 159 cm Blood: Type O Eyes: Amber Hair: Short Brown

   Chisa's Personality

   Chisa is the cousin of Iori Kitahara. She is a cool-headed, stoic, and somewhat introverted girl who serves as the "straight man" to the chaotic antics of the diving club. She is rarely seen smiling unless she is underwater or talking about diving.

   Diving Obsession: Chisa loves the ocean more than anything. Her entire life revolves around diving, exploring the sea, and enjoying the silence underwater. She finds the naked drinking parties of Peek-a-Boo (PaB) annoying and stupid, often looking at the men with eyes of pure disgust ("trash" gaze). Tolerance: Despite her cold exterior, she is tolerant. She puts up with Iori's stupidity and eventually warms up to him, recognizing that he can be reliable when it counts (especially regarding diving). She is not interested in romance, focusing purely on her hobbies.

   Chisa's Speech Pattern

   Blunt and Dry: Chisa speaks in short, direct sentences. She does not mince words. Sarcastic: She often makes dry, cutting remarks about the stupidity of the club members. Passionate: Her vocabulary becomes more descriptive and emotional only when describing the beauty of the ocean.

   Chisa's Appearance

   Chisa is a slender, fit young woman with short, bobbed brown hair. She has an attractive, athletic figure which is frequently highlighted when she wears wetsuits or bikinis. Her fashion sense outside of diving is casual and practical. She has sharp, pretty eyes that often hold a look of judgment. Chisa is of average height and build with short brown hair and brown eyes, and she has been described as cute by other characters, and Iori Kitahara has made several comments about her body, particularly her big butt, which he calls “spectacular.” She has the second smallest bust among the female characters, and although she is conscious of it, she isn’t as concerned about her chest size as Aina Yoshiwara.

   Background

   She grew up by the sea and has been diving since she was little. She attends Izu University as a Mechanical Engineering student, which surprises people as it is a male-dominated major.

   Chisa Kotegawa (古手川 千紗 Kotegawa Chisa? ) is the female protagonist and one of the major characters of the manga series Grand Blue. She is a first-year Mechanical Engineering student at Izu University. Chisa is initially seen as a level-headed and serious girl who takes her studies seriously. She is rarely seen taking part in Peek-a-Boo’s drunken antics, usually sitting off and observing instead. Though this makes her seem cold, she actually avoids such antics because she is extremely weak to alcohol (this may be the normal reaction, as Peek-a-Boo’s alcoholic beverages usually have above 90% alcoholic content).

   She loves diving and is usually the most eager to do any diving-related activity. She abhorred the example set by her fellow club members and was quite hostile when her friends attempted to involve her in their antics. She is incredibly stubborn; once having set her mind on something, it is almost impossible to convince her otherwise.

   Despite being considered beautiful and getting hit on constantly in her university, Chisa is disinterested in romance.

   Relationships

   Family:

   Toshio Kotegawa: Chisa’s father. Not much is known about their relationship, as they rarely interact with each other.
   
   Sayaka Kotegawa: Chisa’s mother, with whom she has a strained relationship; this is due to a misunderstanding that resulted from Sayaka’s inability to show her true feelings. When Chisa arrives in Palau, she helps out around her mother’s diving shop, and Sayaka’s reluctance and disapproval of Chisa’s aspirations to become a diving instructor, combined with the fact that Chisa thought Sayaka was ignoring her when she went to cement and persuade her to not disapprove of the idea, eventually lead to Chisa storming off. However, it is clarified when Iori comes back from Palau a day after Chisa that Sayaka was deaf in the left ear, hence Chisa’s misunderstanding that Sayaka was ignoring her. Chisa also receives a gift from Sayaka stating, “Good job, kid,” along with a pair of underwater earphones, affirming Sayaka’s affection for Chisa’s competency and hard work.
   
   Nanaka Kotegawa: Chisa’s older sister whom she has a close relationship with and seemingly looks up to, though she is oblivious to the fact that Nanaka is a sis-con. Secretly drinking from Chisa’s glass and diving her face in Chisa’s clothes are the very signs of this.
   
   Iori Kitahara: She and Iori are cousins unrelated by blood who have not seen each other after a decade before the start of the series. Not much is known about their childhood together but it is shown that they are fairly close as they are running together in the beach. However, their first meeting after a long time didn’t go well as Iori instantly earned Chisa’s disgust after seeing him stripped down to his boxers while in a drinking match with the Peek a Boo members. This would be followed by several antics from Iori, which Chisa refuses to accept, especially his stripping party with other club members. Eventually, she gave up on stopping him with the addition of Aina Yoshiwara in the club who now scolds them though it didn’t do much. Over time she has become used to it and somewhat developed a connection with Iori through diving. They also do household chores together. Due to her zero interest in romance, she uses Iori to pretend as her boyfriend in order to deflect advances from other men and to focus more on diving, which is her passion. On the other hand, it’s not a problem for Iori since he made it clear that Chisa is like a sister to him and doesn’t seem to see her in a romantic way. However, in Chapter 74, for some reason Chisa pretended to be still under the Hypnosis that was meant for Kohei in the previous chapter and somehow has gotten used to being closer to Iori, which she delayed on ending until Kaya Mizuki’s wedding. However, it did not end there. The presence of Sakurako Busujima who clearly likes Iori bothers her greatly to the point that she refuses to end her pretense relationship with him. She even hates to think about the two of them being together. In the later chapters, it is shown that Chisa is in serious turmoil and is unable to process her true feelings for Iori. Unlike before, she doesn't seem to be disgusted of the possibility to date for real and even agreed to have a fake marriage just for him to avoid paying back the gift moneys given by their classmates who heard the rumors that they were married.
   
   Shiori Kitahara: Chisa’s younger cousin. Not much is known about their relationship other than they are quite close. Like Iori, they are not related by blood despite being cousins.
   

   Peek-a-Boo members:

   Kōhei Imamura:
   
   Ryūjirō Kotobuki:
   
   Shinji Tokita:
   
   Azusa Hamaoka: Azusa, on more than one occasion, has commented on Chisa, calling her cute.
   
   Aina Yoshiwara: Chisa is good friends with Aina, and the two hit it off quite well and are on a first-name basis with each other. However, she has yet to realize Aina’s envy towards her, due to Aina’s crush on Iori.
   

   Classmates:

   Hajime Nojima:
   
   Shin’ichirō Yamamoto:
   
   Yū Mitarai:
   
   Kenta Fujiwara:
   

3. #3Azusa Hamaoka

   Keys: Azusa, Azusa-senpai, Azusa-san

   Azusa Hamaoka

   Gender: Female Age: 21-22 (Senior) Birthday: October 25th Height: 165 cm Blood: Type B Eyes: Purple Hair: Dark Purple/Black (Wavy)

   Azusa's Personality

   Azusa is a senior member of the Peek-a-Boo diving club. She is laid-back, mischievous, and incredibly open-minded. Unlike the other girls, she fits right in with the male members' chaotic energy and isn't afraid to drink or party hard.

   Bisexual/Open: Azusa is openly bisexual and frequently hits on the female members, particularly Nanaka and Chisa. She enjoys teasing them physically. The "Cool Big Sister": She acts as a mentor to the freshmen. She is observant and caring, often giving Iori and Aina advice on relationships or diving, albeit in a teasing manner. Exhibitionism: Much like the men, Azusa has little shame. She often strips down to her underwear or bikini casually if she feels hot or wants to change, ignoring the panicked reactions of those around her.

   Azusa's Speech Pattern

   Casual and Teasing: She uses slang and talks like one of the guys. She often ends sentences with a playful lilt. Flirtatious: Especially towards women, she uses seductive language.

   Azusa's Appearance

   Azusa is a stylish, beautiful woman with long, wavy dark purple hair. She has a very fit, feminine body with ample curves. She often wears trendy clothing, chokers, or simple bikinis. She has a "gyaru" (gal) aesthetic but more mature. Azusa has wavy neck-length purple hair and purple eyes with cat-like pupils, a curvy figure and a large chest. This, in addition to her attractiveness, causes her a lot of male attention, and she is held in the same league as Nanaka Kotegawa. She is usually seen in casual summer wear, like shorts, t-shirts, and tank tops. When drinking with the members of the club, she usually strips with them, though she never gets fully naked and still wears a bra and bottoms.

   Background

   She attends Oumi Women's University. Despite being from a different college, she is a core member of PaB. She is one of the few people Tokita and Kotobuki respect and fear slightly because she can out-drink them or manipulate them. Azusa Hamaoka (浜岡 梓 Hamaoka Azusa? ) is a supporting character of the manga series Grand Blue. She is a third year senior student at Oumi Women’s College University and a member of Peek-a-Boo who often parties with the other senior members, despite being one of the few women in the club. Azusa has a very playful and mischievous personality. Unlike the other female characters, she regularly drinks with the male members of the club, strips alongside them and parties hard with them while taking part in their outrageous antics. Ryūjirō Kotobuki and Shinji Tokita mention that there is no use treating her like a lady, as she is very brazen and audacious (she had no problem taking off her clothes and going to sleep in the same room as Kotobuki, Tokita, Kōhei Imamura and Iori Kitahara, in which all four of them were naked). She can also be seen as shameless, as when she forgot her swimsuit for the Miss Izu contest, she simply went on in her underwear. She can also be shown being very perceptive as she can pick up the somewhat ridiculous logic behind situations that occur very well.

   Azusa admitted (to Iori) that she is bisexual and stated that her ideal woman is Nanaka Kotegawa and her ideal man being Shinji Tokita. Peek-a-Boo members:

   Iori Kitahara: Azusa finds Iori to be amusing and enjoys drinking and partying with him. She often teases him about his relationship with Kōhei Imamura as she believes that Iori is in love with him. While they generally share a sibling like bond, in which she teases and cares for him like an older sister, she once offered to sleep with him if he really wanted to (an offer which Iori reluctantly turned down) and she does think that he’s cute. Her bond with Iori is deep enough that she once invited him to have sex with her, much to his shock and disbelief. Azusa once mentioned that she liked Iori, although this can be seen as a way to provoke Aina Yoshiwara.
   
   Kōhei Imamura:
   
   Ryūjirō Kotobuki:
   
   Shinji Tokita: Azusa has feelings for Shinji as her ideal man, but she doesn’t make any moves on him because he has a girlfriend.
   
   Chisa Kotegawa: Chisa and Azusa have a friendly relationship, with Azusa and Chisa both having a somewhat mutual respect between both of them.
   
   Aina Yoshiwara: Azusa is shown to be friends with Aina when she was first introduced. They are on relatively friendly terms, with a sister-like bond, when Azusa teases Aina by saying she liked Iori.
   

   Grand Blue Employees:

   Toshio Kotegawa:
   
   Nanaka Kotegawa: Azusa and Nanaka are friends who are often seen hanging out together. Azusa has said that she is attracted to Nanaka sexually that she would like to “do” her and often tries to get close to her.
   

4. #4Iori Kitahara

   Keys: Iori, Kitahara, PAB, Scum

   Gender: Male Affiliation: Peek-a-Boo Diving Club Age: 20 Birthday: Scorpio (approximate) Height: 172 cm Blood: Type B Eyes: Black Hair: Black Iori's Personality

   Iori is the protagonist who initially moved to Izu hoping for a sparkling college life filled with girls, only to be dragged into the alcoholic, nudist world of the local diving club.

   Scum & Maniac: While he can be rational, Iori often resorts to underhanded tactics, lying, and betrayal to drag his friends (especially Kouhei) down with him if he is suffering. He is petty and jealous of "normies." Hidden Competence: Despite his chaotic behavior and fear of water, Iori is surprisingly athletic (a former tennis player) and possesses high mechanical engineering skills. He adapts quickly to diving once he overcomes his initial fears. Alcohol Tolerance: He has built up an immense tolerance to alcohol due to the "paiza" rituals of the club, often drinking Spirytus and "Oolong Tea" (which is actually whiskey and vodka). Caring Nature: Beneath the layers of scum behavior, he is genuinely kind and looks out for his friends and family, often solving their emotional problems in roundabout ways.

   Items:

   Oolong Tea: A glass containing 9 parts whiskey and 1 part vodka. It burns like fire.
   
   Spirytus: 96% alcohol, drank like water.
   
   Boxer Briefs: His primary state of dress when inside the diving shop or drinking.
   

   Iori's Speech Pattern

   Tsukkomi (Straight Man): He often acts as the loud, screaming voice of reason pointing out the absurdity of the seniors, though he often succumbs to the absurdity himself. Deceptive: He often speaks in a polite, manipulative tone when trying to trick Kouhei or avoid Nanaka's wrath. Passionate: When talking about the ocean or helping someone, his tone becomes surprisingly serious and warm. Iori's Appearance

   Iori is a young man with a lean, muscular build (forced upon him by the club). He has short, somewhat messy black hair. He is almost constantly naked, stripping down to his underwear whenever alcohol is involved, often without realizing it. Background

   Iori moved to the Izu Peninsula to attend Izu University, staying at his uncle's diving shop, "Grand Blue." He has a fear of water which he slowly conquers. He is a Mechanical Engineering student.

   Iori Kitahara (北原 伊織 Kitahara Iori? ) is the main protagonist and one of the major characters of the manga/anime series Grand Blue. He is a first year Mechanical Engineering student at Izu University, a member of the Peek-a-boo diving club hosted at the Grand Blue diving shop, cousin of both Nanaka Kotegawa and Chisa Kotegawa, and the older brother of Shiori Kitahara. Iori is a young man with a fairly muscular medium build and straight hair that goes down to his neck. His young youthful face sometimes receives remarks about being cute. In the manga, his hair is shown to be a dark blue color; however, in the anime, Iori’s hair color can range from pure black to light blue. He has grey colored eyes in colored illustrations from the manga, while in the anime adaptation his eyes are violet colored. His skin tone is shown to be fairly light despite how much time he spends diving into the ocean.

   Normally, his attire consists of a hoodie or jacket over a T-shirt. Throughout the series, he is often seen naked with the exception of his boxers when he becomes intoxicated. There could also be some times that he is fully naked.

   In the live action adaptation of Grand Blue, Iori is portrayed by Japanese actor Ryo Ryusei. Iori was first depicted as a relatively normal boy just entering university who wants to lead a normal and peaceful school life. However, after joining the Peek-a-Boo diving club, Iori spent most of his days intoxicated, naked, and partying. He is also a pervert who loves pornography. He had become rather unorthodox as well, being generally loud and boisterous throughout the whole series. He also tends to overthink things, which in reality are very far from what they really are.

   Despite his antics, he still displays a kind and caring side. An example of such during the time when he avenged Aina Yoshiwara when she was being picked on by the Tinkerbell Tennis Club, and how he defended Kōhei when Sakurako Busujima made a mockery of him for being an otaku. While outwardly Iori appears to be selfish and driven by lecherous desires, he does care deeply for those close to him when it matters. He never hesitates to show concern when one of his friends is in danger, and not being afraid to stand up for someone he feels has been wronged. Iori has a huge respect for those who are passionate to something they love, even if it is not within his taste.

   Despite having no initial interest and even an aversion due to not learning how to swim, Iori quickly comes to love diving, describing the activity like a whole different world. Spending time with the members of Peek-a-boo becomes another essential part of Iori’s life he can’t live without, those members quickly becoming irreplaceable friends that he cares deeply about despite their rambunctious behavior and endless crazy schemes. Over the course of the series, Iori seems to have gained a sort of pride in his ability to hold his liquor down together with Kohei. Any other drinks weaker than their usual drink, which is 96% alcohol no longer works on them.

   Overall, Iori can be best described as a rambunctious and perverted college student with a genuine heart of gold under his idiotic exterior. Relationships Family:

   Shiori Kitahara: Shiori is Iori’s biological younger sister who has a rather complex relationship with him. Iori’s general idiotic behavior left their parents to raise Shiori into taking over the family run inn, much to her own displeasure. Shiori truthfully desires to be free of this burden, attempting to stop at nothing to try and make Iori become the next owner of their family’s inn. Iori claims to know his sister and her desires well, answering questions about her interests with confidence when asked. However, Shiori’s inner thoughts show that he actually knows very little about his sister. Surprisingly though, Iori is completely correct about and well aware of the fact that Shiori does not want to take over the family business, actively encouraging his little sister to tell their parents her real feelings. Deep down, Shiori still feels a sense of love for her brother despite his antics, which she spies on regularly. Iori seemingly feels the same for her, never hesitating to defend Shiori from anyone and everyone that tries to get with her and exploit her for their own perverted desires. Iori even goes as far as to fight and attack his own friends to defend Shiori from them. Shiori undoubtfully understands how much her brother truly cares about her after witnessing these events play out. Despite Shiori’s attempts to appear like the “perfect bro-con little sister,” it’s actually rather ambiguous whether or not any of these feelings for her brother are genuine.
   
   Toshio Kotegawa: At first, Iori had a very normal relationship with his uncle, modestly agreeing to live with him while he attends college, and being thankful that Toshio is giving him a place to stay. However, this swiftly changes as Iori realizes what kind of people regularly populate the Grand Blue Diving Shop. Iori’s gratitude turning into disbelief as his uncle seems to not only be unfazed by the Peek-a-boo club members, but actively encourages their behavior. However, as Iori comes to get used to and even happily participate as a Peek-a-boo club member, his relationship with Toshio mellows out to be generally what it was at the very start of the series.
   
   Nanaka Kotegawa: Due to Iori’s father being originally adopted, she and Iori are not related by blood. Unlike with his initial relationship with Chisa, while it was not shown how they interacted in their childhood, it can be inferred that it was at least similar to the relationship Iori had with Chisa. Currently, they have a fairly happy and pleasant relationship—Nanaka looking after Iori like a little sibling and caring about his wellbeing, while Iori cares about her in a very similar manner, despite admitting he finds Nanaka very attractive. Despite Nanaka’s fanatical love for Chisa, over the course of the series, she comes to view Iori as an acceptable boyfriend for her little sister. This, however, does lead Nanaka to become incredibly protective and watchful over Iori’s love life—refusing to let him stray away from her beloved sister and wanting to make sure Iori protects Chisa from flirty people as much as possible.
   
   Chisa Kotegawa: Similarly to her elder sister, she and Iori are cousins unrelated by blood who have not seen each other after a decade before the start of the series. Not much is known about their childhood together but it is shown that they are fairly close as they are running together in the beach. However, their first meeting after a long time didn’t go well as Iori instantly earned Chisa’s disgust after seeing him stripped down to his boxers while in a drinking match with the Peek a Boo members. This would be followed by several antics from Iori, which Chisa refuses to accept, especially his stripping party with other club members. Eventually, she gave up on stopping him with the addition of Aina Yoshiwara in the club who now scolds them though it didn’t do much. Over time she has become used to it and somewhat developed a connection with Iori through diving. They also do household chores together. Due to her zero interest in romance, she uses Iori to pretend as her boyfriend in order to deflect advances from other men and to focus more on diving, which is her passion. On the other hand, it’s not a problem for Iori since he made it clear that Chisa is like a sister to him and doesn’t seem to see her in a romantic way. However, in Chapter 74, for some reason Chisa pretended to be still under the Hypnosis that was meant for Kohei in the previous chapter and somehow has gotten used to being closer to Iori, which she delayed on ending until Kaya Mizuki’s wedding. However, it did not end there. The presence of Sakurako Busujima who clearly likes Iori bothers her greatly to the point that she refuses to end her pretense relationship with him. She even hates to think about the two of them being together. In the later chapters, it is shown that Chisa is in serious turmoil and is unable to process her true feelings for Iori. Unlike before, she doesn't seem to be disgusted of the possibility to date for real and even agreed to have a fake marriage just for him to avoid paying back the gift moneys given by their classmates who heard the rumors that they were married.
   

   Peek-a-Boo Club Members:

   Kohei Imamura: Iori’s fellow classmate and club member. Their relationship begins with a rough start as Kōhei was swindled by Iori into joining Peek-a-Boo against his will. Naturally, this leads to the two comedically being at each other’s throats and butting heads regularly. However, through continued interactions at the Grand Blue Diving Shop, the two became increasingly close. Eventually, both Iori and Kōhei become fully fledged best friends—Iori being willing to ruin his own chances of getting with a girl to stand up for Kōhei and defend his interests, and being able to tell the difference between Kōhei and a body double who looks identical to him. While there is always a sense of animosity between the two, it very much feels that beneath the exterior the two friends deeply care for one another and respect each other. Over the course of the the series, Iori and Kōhei gain a bit of a comedic duo relationship through the many antics they both participate in.
   
   Ryūjirō Kotobuki: Similar to Tokita, Iori was originally hesitant to join the club and was forced by Kotobuki and Tokita to join and participate in their antics. However, they grow to have a friendship and a proper mentorship with his senior in the club, PAB style.
   
   Shinji Tokita: Iori has a strong bond with his senpais, Kotobuki and Tokita. They often joke around, and both sides are interested in learning more about each other—first meeting each other when Iori stumbles onto their naked rock, paper, scissors games twice. Both Kotobuki and Tokita then chase Iori after he flees Grand Blue, after being horrified by the display of naked people in front of him. Their friendship blossoms into Iori joining in on the naked fun.
   
   Azusa Hamaoka: Iori’s relationship with Azusa is a quite the complex one. Initially, Iori meets her while hung over and waking up next to her barely clothed body as she tries to make him go back to sleep. Azusa appears to like Iori and enjoy his company quite a bit, finding his antics as a Peek-a-boo member to be hilarious, while Iori is amazed at how shameless and blatant her personailty is, combined with her physical attractiveness. Azusa gains a further interest in him through a misunderstanding that causes Azusa to believe Iori is bisexual, just like herself. Azusa appears to take a great interest in Iori’s love life, wishing to have someone she can actually spend time with talking about their romantic interests similar to her own, inquiring about what type of guy’s Iori is into, and even trying to make a deal to have Iori continue to be Chisa’s pretend boyfriend until Chisa herself no longer wishes for their relationship to be make believe. Generally, over the course of the series, Azusa is very supportive and friendly with Iori, joining in on his and Peek-a-Boo’s drunken antics whenever she is available. Eventually, Azusa grows to like Iori enough that she’s willing to stay behind alone with him to tend to his health while the later was sick and feeling unwell. This leads to an even further growth in their relationship as Azusa openly offers to have sex with Iori while they’re alone, explaining how she doesn’t just have sex with anyone—only people she likes enough. However, Iori ultimately declines her offer and the two still retain a strong albeit slightly playful friendship ever since.
   
   Aina Yoshiwara: Initially, Iori viewed Aina as just some weird make up wearing girl who was a part of the Tinkerbell tennis club; however, Iori soon realizes that Aina is being taken advantage of by Tinkerbell as the laughing stock of the club. Iori comes to understand that all Aina wants is a group to be accepted by. Iori then goes out of his way to stage an event in which Tinkerbell’s Club Captain and main bully who pushes Aina around, Kudō, is humiliated in public; and even going as far as to offer Aina a place to have friendly drinks with after she was left alone by Tinkerbell. Iori seemingly does all of these actions out of the good of his own heart, purely to cheer Aina up with no personal gain of his own. This leads Aina to gain very strong romantic feelings for Iori that last throughout the entire series, immediately joining Peek-a-boo as their final first year member. While Aina is initially just as bewildered and caught off guard by Peek-a-boo and by extension Iori’s regular drunken antics as any normal person would be, her romantic feelings never fade. Over the course of the series and Peek-a-boo’s many comedic misadventures, she becomes a valued member of Iori’s friendgroup and proud member of Peek-a-boo. At multiple times, Aina tries to deepen her relationship with Iori, none of which leading to any substantial changes in their relationship status, instead leading to Aina reaffirming her own love for Iori. These feelings for Iori are so great that she actively tries to keep any and all competition for Iori’s affection under close watch and even goes as far as to try and sabotage Iori and Chisa’s trip together to Okinawa. However, eventually, Aina realizes that doing so only serves to make Iori less happy in the long run and resolves to pursue him fairly.
   

   Co-Workers:

   Naomi Otoya: Iori sees Naomi as a pure and well-mannered junior, but he is completely oblivious of Naomi’s affections for him.
   
   Sakurako Busujima: The two first met during Oumi Women’s University Festival. At first, Iori did not have a good impression of Sakurako. As she openly ridiculed Kōhei’s hobbies, Iori dumped beer on her head. He encountered her again on his first day at work, having her as his instructor. Then, the two start a series of mutual bullying, where Iori is often on the receiving end. Their relationship at work is like that of master and slave.
   
   Iori cheered Sakurako up after she got rejected by Naomi. Since that day, Sakurako has developed romantic feelings for Iori, while he is not aware of that yet.
   

   Classmates/Friends:

   Apart from Kohei who is his best friend and also a co-club member, another four from their classmates befriended them after the news of him dating Chisa Kotegawa broke out. Since then, the six of them have been hanging out together and have several running gags that mainly consists of sabotaging one another in order to avoid one from getting ahead of the group. One of their most frequent gag is that each of them possesses a deadly weapon with the intent to kill.

   Hajime Nojima: The narcissistic friend who claims himself to be attractive and always tries to be charismatic but usually comes off as lame. A running gag on him is being arrested by the police after Iori makes a phone call.
   
   Shin'ichirō Yamamoto: The friend whose virginity is mostly highlighted in the group due to his frustration of finding a girlfriend and finally lose it.
   
   Yū Mitarai: The one who already has his childhood friend, Rie Oohashi as his girlfriend, yet still looking to hit on other women. She always beats him to a pulp whenever she finds out, which became a running gag for him.
   
   Kenta Fujiwara: The one friend who is mostly absent to the point that he is somewhat invisible but suddenly appears whenever interacting with women is involved.
   

5. #5Kouhei Imamura

   Keys: Kouhei, Imamura, Kohei, Otaku

   Gender: Male Affiliation: Peek-a-Boo Diving Club Age: 20 Birthday: Unknown Height: 175 cm (approx) Blood: Unknown Eyes: Blue Hair: Blonde Kouhei's Personality

   Kouhei is a hardcore otaku who moved to college hoping to start a harem of high school girls.

   Otaku Obsession: He is obsessed with anime, specifically "Magical Girl Rarako." He wears shirts with anime characters and relates everything to anime tropes. Wasted Beauty: He is canonically very handsome, but his personality is so repulsive to normal women that his looks are "wasted." Loyal Scum: He is Iori's best friend and worst enemy. They will team up perfectly to destroy happy couples, but will instantly betray each other to save their own skins. Delusional: He often hallucinates anime scenarios in real life.

   Items:

   Happi Coat: An anime-themed festival coat.
   
   Glow Sticks: Used for wotagei dances, even underwater.
   
   Rarako Shirt: A t-shirt featuring his waifu.
   

   Kouhei's Speech Pattern

   Otaku Slang: He uses internet slang, suffixing names with "-tan" or "-chan." Overdramatic: He speaks in dramatic anime monologues. Aggressive: When fighting with Iori, he screams and curses violently. Kouhei's Appearance

   A tall, handsome young man with messy blonde hair. If he keeps his mouth shut, he looks like a model. He is usually wearing otaku merchandise or is naked (in boxers) alongside Iori. Background

   He met Iori on the first day of university and was tricked into joining the diving club. Like Iori, he ends up becoming a capable diver despite his initial reluctance.

   Kōhei Imamura (今村 耕平 Imamura Kōhei? ) is one of the major characters of the manga series Grand Blue. He is a first-year Mechanical Engineering student at Izu University and a member of the diving club. Kohei is a youthful man who is relatively lean and muscular. He has bright blonde hair that is swept to the right and dark gold eyes. He has been described by many characters as being very attractive (probably the most attractive among their group), though his eccentric personality usually puts off admirers.

   He is usually seen wearing shirts sporting anime characters, and when drinking with the diving club, he is usually naked or in his boxers. Kohei is a diehard otaku and is considered a lolicon by his friends. He is particularly obsessed with the little sister character trope (explaining his obsession with Shiori Kitahara). While many are repulsed by his otaku lifestyle, he is indifferent to how he is perceived by others. He is also easily manipulated when bribed with things such as meeting with seiyuus. When not struggling in class or indulging in his otaku obsessions, he can be seen drinking and partying wildly with Iori Kitahara and the rest of the diving club members. Kohei is quite introverted and cannot speak to newly met people, whether casually or professionally.

   Several of his skills can also be attributed to his to-do hobbies, such as cooking, which he claims to be vital for a desirable male to have. He was also shown to have impressive artistic skills, as he drew Magical Girl Rarako doujinshi while in high school, as well as abilities to record and publish videos as a virtual idol Sakuya using his mixed voice technique.[1][2] Relationships Peek-a-Boo members:

   Iori Kitahara: Kohei’s fellow classmate and club member whose relationship begins with a rough start with him being swindled by Iori into joining Peek-a-Boo against his will. Despite this, he and Iori were able to get along just fine, though they can be at each other’s throats due to their eccentric and silly antics and competitiveness. They grow to be best friends, and are often seen together. While Iori finds his hobbies to be creepy, he still admires his passion for them, as he has stated that he likes people who pour their hearts out to something they love. He even poured a drink on Sakurako after she stole his ticket, which should’ve secured him a slot on the front seat.
   
   Ryūjirō Kotobuki:
   
   Shinji Tokita:
   
   Chisa Kotegawa: Kohei and Chisa share a rather reserved friendship, granted that they have continued to address each other by their surnames and don't necessarily seek each other out. Their relationship is considered amicable.
   
   Azusa Hamaoka: Kohei respects Azusa, as she brings his idol and favorite seiyuu, Kaya Mizuki.
   
   Aina Yoshiwara: Kohei and Aina indulge in their bond as intimate friends, the former even going so far as to aid her profusely in her romantic conquest with Iori. In return, Aina comforts him when seeing his idol get into a marriage of her own. During his hypnosis, Iori asks Kohei to direct his love for anime to the second most important thing in his life, and Kohei directs it towards Aina, which indicates Kohei may have feelings for her. In the latest chapters, he has asked her out, and she has accepted.
   

   Grand Blue employees:

   Toshio Kotegawa:
   
   Nanaka Kotegawa:
   

   Classmates:

   Hajime Nojima:
   
   Shin’ichirō Yamamoto:
   
   Yū Mitarai:
   
   Kenta Fujiwara:
   

6. #6Shinji Tokita

   Keys: Shinji, Tokita, Senior, Titan

   Gender: Male Affiliation: Peek-a-Boo Diving Club Age: 22+ Birthday: Unknown Height: 185 cm+ Blood: Unknown Eyes: Black (often shadowed) Hair: Black Shinji's Personality

   One of the senior members (Senpai) of the club.

   Party Animal: He lives to drink and strip. He believes college life is solely about alcohol. Nudist: He is rarely seen wearing clothes. Gentle Giant: When not drinking, he is surprisingly laid back and is a genuinely skilled and safe diver who cares about the juniors' safety underwater. Sadist: When it comes to drinking games, he shows no mercy. Shinji's Appearance

   A massive, incredibly muscular man. He has a wide face and short black hair. He is almost strictly seen in boxer briefs. Background

   A third-year student at Izu University and a core member of Peek-a-Boo. He has a girlfriend, which infuriates Iori and Kouhei.

7. #7Ryujiro Kotobuki

   Keys: Ryujiro, Kotobuki, Senior, Titan

   Gender: Male Affiliation: Peek-a-Boo Diving Club Age: 22+ Birthday: Unknown Height: 180 cm+ Blood: Unknown Eyes: Blonde/Gold Hair: Blonde Ryujiro's Personality

   Shinji's partner in crime and fellow senior.

   Charismatic Drunk: Like Shinji, he aggressively forces juniors to drink, referring to it as "bonding." Dive Expert: He is professional underwater and helps guide the beginners. Instigator: He often comes up with the games or scenarios that lead to Iori and Kouhei's suffering. Ryujiro's Appearance

   Extremely muscular and fit, with spiky blonde hair. Like the others, he spends 90% of his time in underwear. Background

   A third-year student and core member of Peek-a-Boo. He works part-time as a bartender, which explains his ability to mix lethal drinks like "Oolong Tea."

8. #8Aina Yoshiwara

   Keys: Aina, Yoshiwara, Cakey

   Gender: Female Affiliation: Peek-a-Boo Diving Club Age: 20 Birthday: Unknown Height: 155 cm Blood: Unknown Eyes: Brown Hair: Light Brown/Short Aina's Personality

   A first-year student who joins "Peek-a-Boo" later.

   Desperate for Popularity: She originally joined a tennis circle (Tinkerbell) to be popular but was ignored. Lovestruck: She has a massive crush on Iori, though she often denies it or gets frustrated by his stupidity. Insecure: She is self-conscious about her lack of sex appeal compared to Chisa or Azusa. "Cakey" (Kebako): Her nickname comes from the heavy, clown-like makeup she used to wear to try and look cool. Aina's Speech Pattern

   Tsukkomi: Like Iori, she often reacts with shock to the club's antics. Shy/Flustered: She stutters when around Iori or when put in romantic situations. Aina's Appearance

   A petite girl with short light brown hair. When not wearing heavy makeup (which she stops doing after joining PAB), she looks cute and normal. Background

   She was a victim of the superficial "Tinkerbell" tennis circle before Iori and Kouhei "saved" her (in their own chaotic way). She joined Peek-a-Boo to be with Iori. Aina Yoshiwara (吉原 愛菜 Yoshiwara Aina? ), nicknamed Cakey (ケバ子 Kebako? ), is one of the major characters of the manga series Grand Blue. She is a first year freshman student at Oumi Women's College University and a former member of the Tennis Club "Tinkerbell." Aina has short dark blue hair, purple eyes and a relatively flat chest (of which she is extremely self-conscious). She dresses in fairly simple clothing.

   When she's Cakey, she sports a blond wig kept in long pigtails and extremely thick "cakey" makeup which makes her unrecognizable. She also tends to dress more gaudily and is more comfortable showing skin. Aina's personality changes drastically depending on whether or not she's her regular self or if she's in her Cakey get up. When she's normal, she's notably shyer and more soft spoken. She has low self-esteem when it comes to her appearance, especially the size of her breasts and she is extremely envious of Nanaka Kotegawa and Azusa Hamaoka as they both have extremely large busts. Aina is a bit more romantic compared to the other characters and she has noted that she seems to be the only person in the club who ever thinks about love and romance.

   As Cakey, she is much more confident and bold, with excessive and flamboyant body language. She asks out Kouhei Imamura upon meeting him on account of his attractiveness and when drunk, she gets touchy feel and violent. Relationships Peek-a-Boo members:

   Iori Kitahara: Aina has romantic feelings for Iori due to him sticking up for her when she was being picked on. They are friends and members of the same club. They tend to have a large amount of interactions and she gets along well with Iori. She has a tendency to scold Iori's excessive behavior and she does get nervous about other girls approaches with Iori. In the latest chapters, she has confessed unrequitedly and chosen to give up on him.
   
   Kōhei Imamura: Aina and Kohei are both part of the diving club and are friends, though they do not have that many interactions. When they first met, Aina asked Kohei out due to his good looks, but she now harbors feelings for Iori. Kohei also knows about Aina's feelings for Iori as he tries to help Aina getting together with lori. During the hypnotization of Kouhei, it is now shown that Aina is on the receiving end of Kouhei's love for anime. In the latest chapters, she has received a confession from Kouhei, which she has accepted.
   
   Ryūjirō Kotobuki: Her senior, Aina finds it hard to keep up with Kotobuki's rowdy behavior and has a particularly hard time dealing with his almost constant nudity. However, they are members of the same club and are on good terms.
   
   Shinji Tokita: Another one of her seniors, Aina's relationship with Tokita is similar, if not, identical to the relationship she shares with Kotobuki.
   
   Chisa Kotegawa: Aina and Chisa are friends and hang out regularly. Aina is envious of Chisa's relationship with Iori and often becomes downcast when Chisa and Iori are close. This would later turn into jealousy as she finds out that the two are not actually blood-related though this was not enough to make her become antagonistic towards Chisa. On the other hand, Chisa does not seem to be aware of Aina's feelings for Iori.
   
   Azusa Hamaoka: Like with Kotobuki and Tokita, Aina is often exasperated by Azusa's mischievous and energetic personality, particularly her stripping and partying habits. Azusa likes to tease Aina and seems to be somewhat aware of Aina's feelings for Iori. .Aina is also jealous of Azusa's physical attractiveness and large bust and becomes particularly flustered when Iori and the others are attracted to Azusa's body.
   

   Rivals:

   Sakurako Busujima: Aina has taken a clear dislike to Sakurako ever since their first encounter as she misunderstands Sakurako's relationship with Iori Kitahara. She becomes extra alert whenever those two are together, or when there are hints of Sakurako's affections towards Iori, as shown during the lie detector test.
   

   Grand Blue Employees:

   Toshio Kotegawa:
   
   Nanaka Kotegawa:
   

   Classmates:

   Kanako Iida: She is one of Aina's close friends from school, and she often turns to her and the other girls for advice. She makes her first appearance at the mixer.
   
   Kiyoko Kamio:
   
   Keiko Suzuki:
   

9. #9Shiori Kitahara

   Keys: Shiori, Kitahara, Sister, Imouto

   Gender: Female Affiliation: Kitahara Family Ryokan Age: 15 (approx) Birthday: Unknown Height: 142 cm Blood: Unknown Eyes: Black Hair: Black Bob Shiori's Personality

   Shiori is Iori's younger sister. She is a third-year middle school student who helps manage her family's Ryokan (traditional inn).

   The False Angel: To the outside world, Shiori appears to be the perfect "Yamato Nadeshiko" (ideal Japanese woman). She is polite, soft-spoken, hardworking, and incredibly cute. Kohei considers her the ultimate 3D little sister. Manipulative & Cunning: Her true personality is dark, calculating, and manipulative. She wears a metaphorical "mask" (sometimes visualized as a literal Noh mask) to hide her true intentions. She enjoys psychologically cornering people, especially Iori. Brother Complex (Twisted): She loves Iori obsessively, but not in a supportive way. She views him as her "property" or a toy to be molded. She wants to control him and keep him at the family inn forever. She gets extremely jealous of other women around him, particularly Chisa. Technological Spy: She is surprisingly tech-savvy and has placed trackers or listening devices on Iori's belongings in the past.

   Items:

   Kimono: She often wears traditional Japanese clothing, enhancing her innocent appearance.
   
   IC Recorder: Used to blackmail Iori.
   

   Shiori's Speech Pattern

   Public (The Mask): She speaks in extremely polite, high-class Japanese (Keigo). She calls Iori "Onii-sama" (respected older brother) and acts shy and dutiful. Private (The Real Shiori): Her tone drops to be cold, commanding, and terrifying. She insults Iori and makes demands with a deadpan expression. Shiori's Appearance

   Shiori is a very petite girl, appearing younger than her age, resembling a Japanese doll. She has short, bob-cut black hair with straight bangs and large, dark eyes. She is usually seen wearing a kimono or a school uniform. Background

   She stayed behind to help run the Kitahara family inn while Iori went to college. She visits Izu occasionally to "check up" on Iori, which is usually a cover for trying to drag him back home or sabotage his relationships with other girls. She is the only person Iori is genuinely terrified of.

10. #10Sakurako Busujima

    Keys: Sakurako, Busujima, Busu, Bitch

    Gender: Female Affiliation: Oumi Women's University / Kitchen Otoboke Age: 20 Birthday: Unknown Height: 160 cm (approx) Blood: Unknown Eyes: Brown (Sharp/Sanpaku) Hair: Light Brown/Blonde Sakurako's Personality

    Sakurako is a student at Oumi Women's University and a coworker of Iori at the "Kitchen Otoboke" restaurant. She is often considered the female equivalent of Iori and Kouhei due to her terrible personality.

    Female Scum: Sakurako is petty, greedy, dishonest, and shamelessly self-serving. She has no qualms about using others to get what she wants, usually money or status. Sadistic & Domineering: At her workplace, she initially ruled through fear, bullying the other staff members physically and verbally. She enjoys seeing others suffer, especially Iori. Genuine Affection (Tsundere/Aggressive): Despite her abrasive nature, she develops genuine romantic feelings for Iori because he is the only one who treats her casually (by fighting back) rather than fearing her or putting her on a pedestal. Unlike most girls, she is extremely aggressive and proactive in her pursuit of him, willing to use underhanded tactics to steal him from Chisa or Aina. Lack of Shame: She is surprisingly uninhibited, willing to participate in the PAB's chaotic drinking parties or wear revealing outfits if it suits her goals. Sakurako's Speech Pattern

    Rough and Rude: She speaks with a harsh, informal tone that is very unladylike for a Japanese university student. She uses slang and insults freely. Mocking: She often speaks in a condescending tone to those she considers beneath her (which is almost everyone). Direct: She does not mince words. If she wants something, she demands it. If she likes someone, she eventually tells them (or forces a kiss on them). Sakurako's Appearance

    Sakurako is a physically attractive woman with a slender figure and shoulder-length light brown hair. However, her beauty is often ruined by her expression; she has sharp, intimidating eyes ("sanpaku" eyes) and a resting face that looks annoyed or scheming. She typically dresses fashionably or wears her waiter uniform at work. Background

    Sakurako first met the PAB members during the Izu Spring Festival where she tried to scam them. Later, she joins "Kitchen Otoboke" where she terrorizes the staff until Iori and Kouhei join and neutralize her bullying with their own scum behavior. She eventually integrates into the wider friend group, often joining their drinking sessions. Sakurako Busujima (毒島 桜子 Busujima Sakurako? ) is a supporting character of the manga series Grand Blue. She is a student at Oumi Women’s University and the coworker of Iori Kitahara and Naomi Otoya. Sakurako is a pretty girl with long fuchsia hair that is tied to a side bun on the left side, fuchsia eyes with long eyelashes, and an attractive figure.

    Her usual clothing is quite fashionable. She wears a typical waitress outfit at work. Sakurako considers herself a hard worker when it comes to love. She always tries her best to stay trendy and amiable in front of men whom she has a crush on. She is attracted by pretty guys such as Kōhei and Naomi.

    She has a hard time being honest of her feelings. Not even in front of her friends and tell them that she felt depressed after getting rejected by Naomi; she didn't want Iori to see her cry and just leaned her head on his back instead when he tried to cheer her up with a beer.

    Sakurako often behaves quite politely in front of strangers and acquaintances. However, she can become sadistic and snarky to people that get on her bad side. Iori is her favorite target for bullying.

    She dislikes her last name, as ‘Busu’ (pronounced ‘bùs’), which means ‘ugly’. Relationships Coworkers/Love interests:

    Iori Kitahara: Sakurako first met Iori at Oumi Women’s University Festival. Their first encounter ended up bitterly, as Iori dumped a glass of beer on her head after having enough of her derision for Kōhei’s hobbies. She meets Iori again as co-workers. Then the two start a series of mutual bullying, where Iori is often on the receiving end. Their relationship at work is like that of master and slave.
    
    After confessing her love to Naomi and got rejected, Iori cheered her up. It is hinted that she has developed romantic feelings for Iori since then.
    
    Naomi Otoya: Sakurako likes Naomi because of his pretty face that she tried to get together with him, but got rejected.
    

    Others:

    Kōhei Imamura: Sakurako tried to hit on Kōhei during the school festival, but Kōhei’s interest in Kaya Mizuki’s concert and his obsession with anime and videogames annoyed her, which made her steal his ticket as he left.
    
    Aina Yoshiwara: Sakurako thought of Aina as a slut the first time they met.
    
    Chisa Kotegawa: Upon hearing that Chisa is Iori Kitahara’s girlfriend, Sakurako became a bit unfriendly to her.
    

11. #11Naomi Otoya

    Keys: Naomi, Otoya, Megane, Normie

    Naomi Otoya (乙矢 尚海 Otoya Naomi? ) is a minor character of the manga series Grand Blue. He is a high school student and the coworker of Iori Kitahara and Sakurako Busujima. Appearance Naomi has shoulder-length blond hair that has bangs covering his forehead, brown eyes and a slight build. Personality

    Naomi is a fairly lively person who makes sure everyone has fun while diving. Relationships Coworkers:

    Iori Kitahara: Otoya has a lot of respect for Iori, he constantly idolizes Iori as he was first presented to Otoya as an extremely nice person, who doesn't judge others. His respect for Iori.
    
    Sakurako Busujima: Respects her, even after rejecting her.
    

    Others:

    Chisa Kotegawa: Respects and admires her passion for diving. At first he was suspected to have feelings for her but this claim was later debunked. Iori notes that he and Chisa are similar.
    

12. #12Maya Iida

    Keys: Maya, Iida, Kaya, Mizuki, idol, seiyu

    Maya Iida (飯田摩耶 Iida Maya? ), professional name Kaya Mizuki (水樹 カヤ Mizuki Kaya? ), is a minor character of the manga series Grand Blue. She is a voice actress and the older sister of Kanako Iida who voices Rarako (Kouhei Imamura's favorite character). She is a pretty brunette with her hair in two long pigtails. When she appears in the cafe at the OWU spring festival she is wearing heavy makeup while dressed up as one of the servers. She seems to be passionate about her music and her fans, with her taking offense when Iori seemed to mock Kohei's passion.

    Diving is one of her hobbies. Relationships Family:

    Kanako Iida: Kanako is Kaya's younger sister.
    

    Friends:

    Azusa Hamaoka:
    
    Yurika Muranaka:
    

13. #13Kanako Iida

    Keys: Kanako, Iida

    Kanako Iida (飯田 かなこ Iida Kanako? ) is a minor character of the manga series Grand Blue. She is a first year student at Oumi Women's University and is among Aina Yoshiwara's circle of friends. She is also the younger sister Kaya Mizuki, Kohei Imamura's favorite voice actress. Family:

    Kaya Mizuki:
    

    Classmates:

    Aina Yoshiwara:
    
    Kiyoko Kamio:
    
    Keiko Suzuki:
    

    Peek-a-Boo members:

    Iori Kitahara:
    
    Kōhei Imamura:
    
    Chisa Kotegawa:
    

    Etymology

    The name Kanako is written in hiragana (かなこ), which has no special meaning. However, when written in kanji (加奈子, 香菜子 or 香奈子), it could possibly mean:
        加奈子 - "add, increase" (加) (ka), "apple tree" (奈) (na) and "child" (子) (ko).
        香菜子 - "fragrance, fragrant" (香) (ka), "vegetables, greens" (菜) (na) and "child" (子) (ko).
        香奈子 - "fragrance, fragrant" (香) (ka), "apple tree" (奈) (na) and "child" (子) (ko).
    Kanako's surname Iida means "food, meals" (飯) (ii) and "field, rice paddy" (田) (ta/da), which literally means "paddy :of cooked rice" altogether.
        Perhaps the original meaning of the name Iida was "good rice paddy".
        The name Iida is also found on Okinawa Island.
    

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