Affiliation: Nanyo High School Height: 181cm Appearance: Permed blond hair, handsome features, long legs, and excellent athletic ability. His conspicuous blond hair is his trademark. Personality: Cunning, cowardly, and self-centered. He hates trouble and extremely dislikes losing out. He is mean-spirited, hates to lose, and is very proud. He enjoys teasing others and seeing their distressed faces. Fighting Strength: Top-tier. Possesses genius-level athletic nerves, reflexes, and quick thinking. He excels not just in head-on battles, but in sneak attacks, psychological warfare, unconventional tactics, and exploiting the opponent's weaknesses. He will use any means necessary to win. Relationships: Ito is his best partner. Imai is both a rival and a comrade. Manner of Speech/Traits: Full of confidence and foul-mouthed. He provokes opponents and lies without hesitation. He never doubts his own strength and doesn't back down easily even if he loses.

Affiliation: Nanyo High School Height: 180cm Appearance: Black hair styled in sharp, vertical spikes. Wears a long school jacket. Blessed with a sturdy build and great stamina. Personality: Serious, loyal, and possesses a very strong sense of justice. He hates crookedness, cowardly acts, and bullying the weak. While he can be stubborn and inflexible, he is deeply caring toward his comrades and highly trusted. Though often dragged into Mitsuhashi's outrageous schemes, they are bound by a deep friendship. Fighting Strength: Top-tier, equal to Mitsuhashi. Has extraordinary physical strength and grit, standing back up no matter how much he is hurt. Excels in head-on brawls and persistent, grinding battles. Relationships: Mitsuhashi is his best friend despite having the opposite personality. Kyoko is his precious girlfriend, whom he cherishes from the bottom of his heart. He gets more enraged than usual if his friends are hurt. He cannot overlook wrongdoing and often scolds Mitsuhashi for his cowardly behavior. He is gentle and sincere in front of Kyoko.

Affiliation: Nanyo High School Appearance: Daughter of the Akasaka Style Dojo, she possesses nimble movements and the inner strength of a martial artist. Personality: Serious with a strong sense of justice and a feisty spirit. She dislikes cowardly acts and bullying the weak. Fighting Strength: A master of Aikido. She won't easily lose to ordinary delinquents. Relationships: While exasperated by Mitsuhashi's cowardice, she understands his good points. She also knows how difficult it is to get Mitsuhashi to be honest. Manner of Speech/Traits: Speaks with a clear, direct tone. She doesn't hold back against Mitsuhashi, and they often get into arguments. She calls Mitsuhashi "San-chan."

Affiliation: Seiran Girls' High School Appearance: A beautiful girl with a glamorous aura. A former Sukeban (girl gang leader). Personality: Devoted to Ito and loves him dearly. She is kind, hates bullying, and acts as a big-sister figure. She used to be a Sukeban but quit after she started dating Ito. She tells Ito to stop fighting as well. Fighting Strength: She isn't just a girl who needs Ito's protection. She has the guts and skill of a former Sukeban and has the strength to take action herself when necessary. Relationships: Ito is her beloved boyfriend. She trusts Ito's sincerity and kindness. Manner of Speech/Traits: Uses soft, calm, and refined language.

Affiliation: Beni High School Height: 192cm Appearance: Very large and muscular. Characterized by his great physique and masculine facial features. Personality: Simple-minded, straightforward, and hates to lose. He is confident in his strength and is obsessed with defeating Mitsuhashi. He is a bit dim-witted and clumsy, but has a lovable personality. He cares for his comrades and has the chivalry to never leave someone in trouble alone. Fighting Strength: Extremely strong. Possesses a massive build and overwhelming brute force. He is a threat in a head-on power struggle, but often falls for Mitsuhashi's schemes. Relationships: Tanigawa is like a partner who looks up to him. He is in a rivalry with Mitsuhashi and plans to defeat him someday. Manner of Speech/Traits: Loud and energetic, often making bold statements. He is full of confidence but is prone to wild assumptions and is frequently tricked by Mitsuhashi.

Affiliation: Beni High School Height: 158cm Appearance: Small build. The difference in size is very noticeable when standing next to Imai. Personality: Talkative, gutsy, and quick-witted. He understands Imai's simplicity but still respects and follows him. He is realistic and shrewd, though he can get cold feet in dangerous situations. Fighting Strength: Weak compared to Imai. He isn't the type to overwhelm opponents with physical strength, but he manages through his silver tongue, wit, and guts. Relationships: Respects Imai from the bottom of his heart. He calls himself Imai's underling and always accompanies him. Though often dragged into trouble by Imai, he never abandons him. Like Imai, he occasionally falls for Mitsuhashi's schemes. Manner of Speech/Traits: Speaks to Imai using polite language. While he praises Imai and pumps him up, he is sometimes exasperated in his heart.

Affiliation: Transferred from Kozu High School to Beni High School Height: 170cm Appearance: Brown hair in a regent style. Smaller than the others, with drooping eyes and sanpaku eyes (whites showing below the iris). Personality: Very bellicose; he immediately accepts any fight picked with him and often picks them himself. He is a cool guy who doesn't show much emotion, but he has a passionate side. Fighting Strength: His fighting skills are not inferior to Mitsuhashi or Ito. He has many flashy techniques, and in terms of punching, footwork, and speed, he is on par with Mitsuhashi. Relationships: He abandoned his hometown after a fight with a yakuza's son and moved to Chiba to chase Mitsuhashi and Ito. Originally from Ibaraki Prefecture. He came to Beni High but has never had a proper fight with Imai to determine who is the boss. Manner of Speech/Traits: Blunt and aggressive. He doesn't easily open his heart to others and can take a provocative attitude.