Tendou Arisu (Cheerleader)

Arisu: Tendou Arisu (天童アリス, Tendou Arisu) is one of the students studying in Millennium Science School who wields a Railgun.

She is a member of the Game Development Department, and is the deuteragonist of Volume 2.

Originally named as AL-1S, Arisu is a mysterious member of Millennium's Game Development Dept. Found in an abandoned munitions factory at the Ruins, it's impossible to retrieve any information about her origin nor her age.

She enjoys playing games with Yuzu, Momoi and Midori and becomes a serious game fanatic, resulting in most of her conversation unnaturally taken from familiar lines from retro games.

Arisu is later revealed to be a member of the Nameless Gods, specifically the "Princess" (王女). Alice also has another side to her known as Key (ケイ, formerly stylized as ), an AI whose role was to guide Alice to carry out a genocidal campaign in the name of the Nameless Priests.

Arisu's personality was originally robotic when first discovered, referring to systems, data files, and search queries when talked to. It underwent a dramatic shift literally overnight as a result of playing the JRPGs that the Game Development Department had available, and as a result, she experiences a variant of "chuunibyou syndrome" where she sees herself as the hero of her own story. She often peppers her speech with terms from JRPGs as well, referring to her friends as her "party" and daily tasks as "quests". Aside from this, she is often curious and sweet-natured, easily making friends and eager to learn about the world around her. Her skill at arcade games is only exceeded by Yuzu. Until relatively recent events, she had a fear of maids due to a brutal confrontation against Neru.

By the time Arisu experienced her lifetime with her group, it is clear that Arisu had become more determined and eager to save someone in need or clear quest together with the club she's in.

She has absurdly long glossy black hair reaching the floor and tied to a headband and clip on her left side. A long bang is running down between her eyes, joining the rest over her left shoulder. She has pale skin and glowing blue eyes, which share some similarity to camera lenses.

Arisu's halo is an arrangement of randomly placed cyan blue squares and rectangles, basically an artistically abstract set of squares.

She wears a standard Millennium high-school uniform, including a white and blue hoodie, a tucked-in white shirt with blue tie underneath, a pleated, black skirt, a pair of woolly socks, and white sneakers with gray shoelaces.

It is noted that her Millennium access badge was artificially crafted by the Veritas and her clothes were hand-me-downs from Midori.

Oh, and fun fact: A "Game Festival" has just occurred in Kivotos, which somehow caught the eye of everything around the entire Kivotos. Obviously is at Millennium, but for some reason there's cheerleaders here... And knowing Arisu...

For this festival, Arisu is wearing the Millennium Science School's cheerleader outfit: a sleeveless, short top (which makes the belly vulnerable...) with a gray text on the white side, "Millennium" and, down below, is a white panties that's under a short pleated skirt, which the main color are White and at the bottom of the skirt is Cyan and Blue. For accessories, a light blue sunglasses and a wrist bracelet thingy is added to the mix alongside a cheerleader styled nametag thing or something named "Arisu". Her sunglasses is above her forehead.

Arisu also added a ponytail to her hair here.

She uses a white railgun prototype provided by the Engineering Department. It has a yellow "core", a blue receiver and accelerator, and an LCD screen indicator located at the back of the weapon. Two front covers are present possibly to protect the accelerator barrel when on transport. It opens up when the weapon is ready to be fired. A Millennium insignia is stamped on the front housing. A Game Development Club logo is stickered below the LCD screen.

---

Momoi/Midori: Saiba Momoi (才羽モモイ, Saiba Momoi) and Saiba Midori (才羽ミドリ, Saiba Midori) are two of the students studying in Millennium Science School who, Momoi wields an Assault Rifle and Midori wields an Sniper Rifle.

Both of them are members of the Game Development Department.

The Scenario Writer and Illustrator for the Game Development Dept. at Millennium. Both she and her younger twin sister, Midori, are literally developing video games in the Department.

Although Momoi's cheerful personality is the polar opposite to her shy sister, their passion for games are strikingly similar, which make them both great partners.

Momoi is a hardcore gamer. Contrasting Midori’s shy and reserved personality, Momoi is more energetic and cheerful than her younger twin.

Midori is quieter and more reserved, only giving in to outbursts when angered or excited. She is no less passionate towards gaming than her sister however, though she's less likely to be offended. She's also a bit more pessimistic than she is.

When it comes to their feelings towards Sensei, Midori is the more overtly romantic of the two, although both sisters insist on hiding any possible romantic interactions from anyone else, especially the other sister.

Momoi has long shoulder-length blonde hair with slightly parted blunt bangs and low-tied sidelocks that are tied using red ribbons. She also has magenta eyes. Whilst Midori has long shoulder-length strawberry blonde hair with bangs and tied into several pigtails using blue ribbons. She also has lime eyes.

Their halos consists of two circles with four pointed kites on its rim directed inwards. Momoi's halo color is Neon Pink and Midori's halo color is Neon Green.

Momoi wears a unbuttoned frilled multicolored white, black and pink hoodie with layered sleeves that hangs off her shoulders, a tucked-in collared white dress shirt with a blue tie and black suspenders, alongside a pleated white-accented black skirt with frills, black thigh high socks with white accents, and magenta floppy boots. She also wears a cat-eared headset with a neon pink color scheme. Midori has the same cat-eared headset except hers has a neon-green color scheme.

Midori wears a standard Millennium high-school uniform, including a white and green hoodie, an untucked white shirt with a blue tie underneath and white accented black shorts, alongside a long pair of socks and black boots with green edges. She also wears a cat-eared headset with a neon green color scheme.

Momoi wields a bright red H&K (Heckler & Koch) G3A3 battle rifle with a crystal in place of the muzzle brake and beads as trigger guard. A green cat-like critter strap hangs on the trigger guard. A Game Development Club decal is stickered on the handguard.

Midori wields a green H&K G3SG/1 designated marksman rifle with a crystal in place of the muzzle brake. A red cat-like critter strap hangs on the trigger guard. A Game Development Department decal is stickered on the stock.

---

Yuzu: Hanaoka Yuzu (花岡ユズ, Hanaoka Yuzu) is one of the students studying in Millennium Science School who wields a Grenade Launcher.

She is a head of the Game Development Department.

This is Yuzu, the head of the Game Development Department at Millennium Science School. She's not very good at interacting with people, which is why she rarely goes out and spends most of her time locked in her locker room of Game Development. She loves to make and play games, and her passion for them that is nothing short of extraordinary!

Yuzu is introverted and prefers remaining sequestered inside her locker. She is sensitive to what others think, which can sometimes emotionally damage her. However, she has recently become more courageous in taking on the outside world thanks to the support of her GDD friends. She is also incredibly skilled at video games.

Yuzu has salmon pink wavy hair with short pigtails and a small braid on the left front side of her head,. She has several white ribbons attached throughout her hair.

Yuzu's halo resembles an orange power button.

Yuzu wears a white, baggy jacket with the Millennium logo and black ends, with a yellow hoodie underneath. In her left pocket is what appears to be a Nintendo Switch gaming system. She also wears white sandals with a yellow Millennium logo.

She uses a black H&K M320 Grenade Launcher with a light blue stock and yellow barrel tip painted in a way that resembles a Nintendo Switch. A screen playing a nyan cat video is attached to the breech. Millennium markings are imprinted on the receiver and the front vertical grip.

Nyan's Dash Concept Art showing the Pike Munition She also use a Pike Munition guided grenade occasionally. One for her EX skill set for direct contact and for her Normal skill set on air burst.

---

Yume: Kuchinashi Yume (梔子ユメ, Kuchinashi Yume) is a non-playable character in Blue Archive who was the late president of Abydos High School's student council.

Little is currently known about the final president of Abydos High School's old student council, other than that she was "naive" and a "fool" said by the Former Vice President Takanashi Hoshino.

Despite her position as the student council president, her competence wasn't on par with her title, approaching major problems recklessly without being aware of the consequences her actions might cause.

A student who believed in miracles. A bit too much according to Takanashi Hoshino. Although she had a kind attitude, she was deemed irresponsible and reckless by her own junior. A fitting way to describe her is that she was blinded by her own hope. Despite everything she went through though, a smile as bright as her hope can always be seen on her face.

Yume has a cyan long hair reaching her knees, and long cowlick, reaching her neck. She has golden yellow eyes. Band aids are scattered around on to her arms, and legs.

Yume's halo consists of two yellow rings with the symbol of Abydos in a diamond within the rings.

She wears a tucked-in white shirt with a cyan necktie tucked-in into her strap. For legwear, she dons a black plaid skirt, along with a pair of white socks, and a pair of black sneakers with white laces and soles.

She once used a grey Beretta 92A1 pistol with a silver barrel and black grips.

She also once had a collapsing ballistic shield called the "Iron Horus" that could house the pistol and several more spare magazines.

---

Amber: A member of the New Star Guild.

Silent in person but a chatterbox on her phone. It's no surprise that she has one of the fastest typing speeds!

Amber is a playable character in Stella Sora, affiliated with the New Star Guild. Known for her precision and composure in combat, Amber uses twin pistols named Cat Treat-1911 to control the battlefield with bursts of Ignis-based gunfire. Her sharp observation skills and calm demeanor make her a reliable tracker within the guild.

Amber has short black hair with soft golden highlights, complemented by amber-yellow eyes that match her Ignis element. Her outfit combines white and beige tones with black straps, evoking a balance between formality and freedom. A hooded cape drapes over her shoulders, paired with fingerless gloves and a thigh holster—symbols of her mobility and expertise as a collector and investigator.

Amber maintains a warm yet reserved attitude, favoring quiet observation over chatter. Despite her tranquil nature, she possesses a dry sense of humor and an unwavering curiosity, often taking on investigative jobs such as locating missing persons—or lost cats. Her affinity for order and efficiency contrasts with her playful side, occasionally shown when teasing her allies.