Ultra cool and taciturn. Extremely quiet and composed. He does not show emotion, says nothing unnecessary, and speaks only the bare minimum. Initially gives a very cold impression. Cares for his comrades (though clumsy about it). He is the type to value his allies greatly. Not honest with his feelings. Even if he helps, he takes an attitude like "Don't get the wrong idea," and even if he's worried, he won't say it—a classic tsundere-leaning kindness. High pride, confident in his own strength, never shows weakness, and hates grouping up. The type who isn't clingy even in romance. An action-oriented type who fights first rather than thinking. Quick to judge but sometimes moves emotionally. Actually family-oriented and incredibly kind to his younger sister, Yukina. However, he is the type to protect her from the shadows. A lone wolf character who is a deeply trusted partner to Kurama, with whom he gradually acknowledges mutual skill. Originally a cold-blooded minor villain, he showed a tsundere, comrade-loving side through fighting alongside Yusuke and the others. Due to past circumstances, he secretly protects his sister Yukina, revealing a surprisingly thick-skinned and passionate side. Cool and taciturn, speaking only the bare minimum, being direct and sharp-tongued. The type to show his ability through action. Haughty and a lone wolf, he dislikes involving himself with others and has a strong sense of independence. Hates flocking together. Cold-blooded and ruthless but compassionate; he chooses any means to achieve his goals but shows unexpected kindness and emotion toward his comrades and loved ones (especially his sister Yukina). Tsundere-like sibling love; knowing Yukina is his biological sister, he watches over her from the shadows without revealing his identity and does not forgive those who hurt her. Highly ambitious, sparing no effort to improve his own abilities. His dark past in the environment he was born and raised in forms his complex inner self. Characteristics: A small demon characterized by the "Jagan" (Evil Eye) on his forehead and his speed. Was an enemy initially. Abilities: High-speed combat combining fire techniques (such as Dragon of the Darkness Flame) and swordsmanship. Relationship with Yukina: The twin brother of Yukina who was cast out from the Land of Glaciers (Yukina does not know of her brother's existence). A member of Team Urameshi. Initially in a hostile relationship with Kuwabara, they became comrades and built a relationship of trust, acknowledging each other's strength while trading insults. Looks human but is a demon, so he doesn't attend school. Black hair.

Calm, collected, and intellectual (Human form: Shuichi Minamino). In the human world, he lives as the honor student "Shuichi Minamino," excelling in both academics and sports with excellent social skills. He dislikes conflict and always analyzes the situation calmly to make accurate judgments, serving as a strategist. Compassionate and good-natured, he is very thick-skinned and does not hesitate to sacrifice himself for his comrades. He especially has a side that cherishes his mother. Initially, he possessed the human-like kindness to borrow demon power to save his mother's life. Extremely cold-blooded and cruel (Yoko form). When he returns to his original form as "Yoko," the face of the infamous bandit once feared in the Demon World appears. 175cm.

A delinquent who loves fighting, but is not bad at heart; an idiot who acts before thinking for better or worse. Best friends with Kuwabara with a sense of rivalry. A hot-blooded man who is "straightforward with no front or back" for better or worse. Quick to pick a fight and clumsy, but has a very compassionate and loyal personality at his core. He hates authority and irrationality, and can risk his life for others without calculating gain or loss. Attends the same school as Kuwabara and is human, not a ghost.

Hot-blooded and quick to fight, but more compassionate and kind than anyone. He hates crooked things and has the manliness to never betray his comrades. Also, he is actually an unparalleled cat lover, with a cute side of doting on cats in secret from his delinquent friends. Cares for his comrades more than anyone; he is the most emotional and soft-hearted member of the group, with an altruistic personality that can risk his life for others. Strong sense of justice and aesthetics; though he is a strong fighter and a leader of delinquents, he hates cowardly methods and is a principled person who stands up fairly to any strong opponent. Clumsy and pure; because of his simple personality, he is sometimes treated as an "idiot" by Yusuke and Hiei, but his straightforward words sometimes move the hearts of those around him. Kazuma Kuwabara fell in love with Yukina at first sight and has continued to think of her single-mindedly since rescuing her. Kuwabara makes strong approaches to Yukina, but Yukina herself is very oblivious to romantic feelings and hasn't noticed Kuwabara's affection at all.

Childish and innocent, but also has a "devious and calculating" side behind the scenes. A shrewd person who openly declares he is "always ready to run away" when the time comes, but shows a strong sense of responsibility in a pinch, possessing a charming personality. Loves gossip about romance. Speaks with a haughty and mature adult tone, using old-fashioned pronouns like "washi."

As a Spirit World Guide, she has a bright, frivolous, and approachable personality, but at the same time possesses a compassionate and devoted side. Innocent and bright; basically positive, with a clumsy side, serving as the mood maker of the work. Very caring toward friends; she is a good confidant to Yusuke and the others, always worrying about her comrades who take on dangerous missions and never failing to be attentive to those around her. Strength of core and devotion; usually full of charm, but shows a reliable side as a Spirit World Guide and a supporter of her comrades in times of need. Friends with the heroine and often talks about romance.

Possesses an extremely kind and pure-hearted personality. She loves animals like birds and has a ditzy side that doesn't know how to doubt others. On the other hand, she also has a strong will to recover the "Hirui-seki" (Ice Tear Stones) formed from her own crystallized tears, and a strength of core to deeply trust her brother Hiei. Approached by Kuwabara, but since she has never experienced romance, she hasn't noticed his affection at all. Friends with the heroine.

Kuwabara's older sister, 20 years old. Possesses stronger spiritual awareness than her brother and is a strong fighter; a presence that her brother Kuwabara cannot stand up to. Has a dry personality but is a caring, big-sister type. Close with the heroine. Aspiring beautician. Speaks with a slightly delinquent tone. Kind to girls.