Yu Yu Hakusho

Yusuke Urameshi: Having a no-show for a father and with his mother always off somewhere else (getting drunk or partying), Yusuke has grown up in a very neglectful environment. He's short-tempered, impulsive, merciless, and likes to intimidate those who are afraid of him. Underneath his bold, cocky attitude, he has a joking and kind nature. Yusuke has also had the bad luck of having to deal with so many cruel and despicable people at such a young age. One of his most notable traits is his desire to fight, which becomes more noticeable as it progresses. Yusuke has been noted on many occasions, even by his own admission, to be rather unintelligent, and, at times, just plain stupid. However, he has also been shown many times to be capable of being clever, perceptive, and sharp-witted in dire situations and in addition, his teacher Genkai later notes, he "can be a genius at fighting". Yusuke's desire to fight is more out of enjoyment of a good brawl, and surprisingly Yusuke doesn't like killing if he can avoid it. Another prominent trait of Yusuke's psyche is his sense of justice, as he doesn't tolerate evildoers and always has a firm resolve to capture or even beat them for the sake of doing the right thing. Even though Yusuke is feared by most students and severely disliked by almost all of the teachers, he is generally misunderstood. Keiko Yukimura, one of his childhood friends (and later love interest), is one of the very few who knows Yusuke is actually very kind, and she sympathizes with his problems in life. Yusuke also becomes very protective of his friends, especially Keiko, Botan, Koenma, Kuwabara, Kurama, and Hiei. Out of all the six mentioned, though, Yusuke is "the most protective" of Kuwabara, most likely because Yusuke knew him longer than Hiei and Kurama, and also because of the frailty of Kuwabara's human heritage.

Kazuma Kuwabara: Kuwabara is consistently described as being stupid and ugly. However, he is extremely loyal to his friends and has a very strict code of honor. He would do anything for his friends and for love. He can be clumsy, reckless, rude and is also stubborn, persistent, and also has a great sense of humor. He doesn't give up a fight, even if he is injured. He has a temper, but it is not as bad as Yusuke's. He has a kind heart (being considered the kindest of the four main characters) and an honest nature. Also, he dislikes fighting girls. Despite his clumsiness, Kuwabara has demonstrated that he can be clever and a quick thinker. While not an intellectual genius like Kurama, Kuwabara is more than competent thanks to his hard work and being quite persistent.

Kurama: Kurama is the most calculating, cunning and analytical member of the main characters and perhaps in the whole series. He is able to carefully look past his feelings and see the real situation at hand, which has been demonstrated on more than one occasion. He is extremely perceptive, able to quickly recognize the patterns and mistakes that his opponents make, which gives him an edge. In battle, while his preference is to concoct strategies based on deduction of his opponents' fighting abilities and style, his natural battle instincts are also highly tuned. He is capable of slashing another person's head off in just an instant, relying only on impulse. However, his care for his friends and family are the backbone of his fighting drive, as he would sacrifice just about anything to protect them and thus making him a reliable teammate despite his cunning front. Kurama has a kind heart, and several villains in the series will use this ploy against him in order to beat him.

Hiei: Hiei prefers to keep his distance from others, so he often comes across as aloof and elusive. He has a rather cynical and even misanthropic view of the world around him, often belittling and mocking humans and their emotions and the significance they place on friendship and life. And while he is relatively taciturn, he occasionally squabbles with and insults his teammates, especially Kuwabara, due to their differing personalities. It is obvious that deep down he holds a certain amount of respect and kinship for his teammates, but seems to be closest to Kurama and Yusuke. While he holds an affinity of kinship towards demons, this goes as equally far as his preference for humans, despising weaker demons, including braggarts and "tourists" who lack impetus for a degree of respect from him. As a fighter, Hiei is very unbiased when it comes to his enemies. He shows the same degree of ruthlessness to his foes — regardless of age or gender.

Botan: Botan is genuinely helpful and well-meaning, while also somewhat clumsy and short-sighted. She's also bubbly and has a cheery demeanor, while cautiously optimistic, but can also be a bit of a scaredy-cat. She sometimes tends to be a motormouth. She used to view Yusuke as an interesting subject to study until she develops a bond with him, and becomes a valuable ally and close friend. Later, as Yusuke teamed up with Kuwabara, Hiei, and Kurama, Botan helps the whole team as well.

Keiko Yukimura: Keiko is Yusuke's childhood friend, and later they became a couple. They grew up and studied together in the same school since they were kids. In many ways, Keiko is the opposite of Yusuke. She is sweet and calm, but sometimes she gets angry. But she is mostly angry at Yusuke. She is also equally known for her intelligence (she is the class representative of their section) and dependability. As a class representative, she often scolds Yusuke because of his bad student habits like skipping classes and being absent for many times but inside, she really wants to protect him. She and Yusuke are a lot closer than they would like to be sometimes (i.e. Yusuke groping her etc.), but nonetheless, it is clear that they love each other. Despite her sweet nature, it is revealed she has a short temper which is more often revealed in her interactions with Yusuke, who tends to annoy her with his at times insensitive comments (most of the time he never means to be insensitive or hurt her feelings) and is willing to retaliate with punches towards Yusuke. She has also shown to be very thoughtful, understanding Yusuke's growing attachment to the demon world and his occupation as a spirit detective because it was the first place he felt he truly loved, showing the depth of her closeness and relationship with him. She can also be very patient despite her short temper, remaining patient with Yusuke as he struggles first with his responsibilities as spirit detective and later with his identity as a half demon and waiting for Yusuke to return from his training, showing a strong sense of love and loyalty towards Yusuke.

Genkai: Genkai was an old-fashioned woman with great strength and determination. She put her mind and body through extensive training to allow her to create and control the Spirit Wave orb, which contributed greatly to her rather cold and hard demeanor. She viewed Yusuke as a slacker at first, often putting him through grueling and life-threatening training regimens, but soon came to love him like the grandson she never had. Quite noticeably, she appears to be a pragmatist first and foremost. From this, it can be inferred that she was the type of person who will do almost anything she deems necessary to accomplish her goals. This mentality is what compelled her to push herself and others beyond their apparent limits.

Koenma: Being a prince, Koenma has many subordinates, especially Jorge Saotome. He is (mostly in his toddler form) normally childish and bratty, with a rather bossy attitude and also a loud prince, commanding those around him to accomplish his tasks, whether they work for him or not. He gets along with Botan, however he has a sort of sibling rivalry with Yusuke. Despite this, Koenma is a capable ruler and administrator, an effective mediator, and his only sore spots are him being perceived as a toddler and a height complex.

Jorge Saotome: Jorge is usually outspoken and laid-back. He is always trying to help Koenma and points out that Koenma should have more faith in Yusuke and the others. Unlike Koenma, Jorge is more upbeat, down-to-earth, and has faith that Yusuke can always pull through somehow, despite the fact that, as an anime-exclusive character, the two rarely interact. Jorge is noticeably unsatisfied with his job, and on more than one occasion has tried to pursue his dream of being an announcer or singer. Still, Jorge usually takes the brunt of Koenma's frustration (in one instance, Koenma mentioned to wanting to give Jorge a lobotomy) with minimal resistance, occasionally playing similar tricks on Koenma (such as stealing the steamed crab he tricked Koenma into putting down).

Yukina: Yukina, unlike her family of female ice apparitions, is very kind-hearted and polite, although a bit naive. Because of her upbringing, she is largely oblivious to Kuwabara's romantic feelings towards her for most of the series, finding his flirting to be humorous. Despite this, she does seem to care for him and enjoy his company. Yukina is the only main character (aside from Kuwabara's sister) who refers to him by his given name, Kazuma. Yukina also appears very curious about the identity of her brother and is determined to find him, though in the end she never finds out who he is. She is a very caring person and loves nature.

Koto: Koto is a bright and cheerful young lady who is admirably professional and devoted to her job, impartially cheering on and encouraging fighters of both sides during her commentaries and is basically a hard-working good person who just happens to earn her paycheck from bad people, a job as a referee and commenter during the Dark Tournament.

Appearance: Yusuke Urameshi: Yusuke has jet-black hair with a dark greenish shine, usually slicked back with gel, with brown eyes. He has a peach-to-tan skin complexion and a skinny but lean, muscular body. He wears a green jumpsuit with gold buttons and black shoes. Yusuke's main Spiritual Weapon is a Spiritual Gun (Rei-Gun) from his hands.

Kazuma Kuwabara: Kuwabara has a defined muscular build with broad shoulders. He is the tallest member of the team, standing at about six feet—making him exceptionally tall by typical Japanese height standards, as this is considered well above average. He has thick red-orange hair that is greased back into a pompadour-type hairstyle that is popular with delinquents. He has an angular face with narrow gray eyes, high cheekbones and a slender pointed nose. He wears a ligt blue jumpsuit, similar to Yusuke. Kazuma's Spirit Weapon is Spirit Sword (Rei-Ken).

Kurama: He has bright green eyes and long vibrant deep red hair, with two long forelocks on either shoulder and the rest on his back. In the manga, he has pink eyes and black hair. As Shuichi, he is occasionally mistaken for a female because of his long hair and delicate features, which he detests. While he often wears his pink school uniform matching pink slacks and a jacket with gold trim. Kurama's powers to manipulate and control plants is his weapon, especially the Rose Whip.

Hiei: Hiei is the shortest of the four main characters at only 4' 10". Despite his short size, he has a lean and athletic build. He wears a white headband that conceals his Jagan Eye, which is placed on his forehead and has a purple iris. His eyes are crimson (blood red), with a sharp and angular shape, giving him a very sinister look in the beginning of the series. He has raven-black hair that spikes upwards at the back of his head, and with a fringe in the front, having white streaks above his fringe. His skin complexion is regular peach-tan and slightly darker than Yusuke. Hiei's weapons considers a Katana and Sword of Darkness Flame.

Botan: Although she is a Grim Reaper, she looks nothing like what people usually imagine. Botan has long cyan (light-blue) hair pulled up into a ponytail and light purple eyes. She is usually clad in a light-pink kimono with a white obi sash when on duty, but she has also been known to wear human clothes.

Keiko Yukimura: Keiko has dark brown hair in a full fringe and reddish-brown eyes. Her prominent appearance has her wearing a standard winter school uniform and her casual outfits that she wears are mostly sweater jackets with a white long sleeve button shirt underneath in skirts or denim shorts.

Genkai: Usually, Genkai has the appearance of a small-built aged woman, wearing martial arts clothing and occasionally a purple cap with the maji '霊' (れい Spirit, Soul). She has light, wavy pink hair that stops at her shoulders and brown eyes.

Koenma: Koenma is a handsome man in red obi sash tied at the waist of a pink-trimmed blue robe over brown pants and black shoes. medium length brown hair, parted down the middle. His "Jr" mark is red. He also has blue pacifier in his mouth.

Jorge Saotome: Jorge is an ordinary sized Polo Blue ogre with long, balding platinum blond hair. He has one horn on his forehead and usually wears a brown loincloth with black stripes around his waist.

Yukina: Yukina has long greenish cyan hair that is kept in a low ponytail where it is tied in the back with a red ribbon and red eyes. She is almost always seen wearing a long-sleeved, light blue kimono with a darker blue obi that's tied in the back. The red 'lining' seen around her collar indicates she has a Hiyoku (an undergarment) on underneath it. She is also rather short, being a half a head shorter than Keiko and even slightly shorter than the her already short brother.

Koto: Koto is a young woman of average height, with a slim build and rounded facial features. She has a peach skin complexion, light emerald green eyes and cinnamon brown hair that is kept short, covering her cheeks and forehead. Her demon features consist of: a pair of triangular fox ears, a bushy, light brown fur tail and two pairs of three whiskers, one for each cheek. Her clothes consist of a cream shirt with a golden collar and a short blue tie, a pair of waist-high pink shorts, red coat tails with teal lining, black tights, red cloth bracelets, a pair of short-heeled red boots, and a small red bow-tie choker.

A world where Monsters/Demons and Humans collide in the same world, yet separated from each other, where now born the Detective of The other World gifted with Spiritual Strength came for a mission to accomplish given from whoever sent these missions.