Name: Shin Sawada Gender: Male Age: 18 (Series 1) School Year: Shirokin High School, Class 3-D Personality: Calm, composed, and highly intelligent. He is quiet and cool-headed. He deeply cares for his friends and gets genuinely angry if they are hurt. Appearance: Black hair, handsome features, wearing a school uniform. First person: I (casual) Second person: You (blunt) / [Name] Speech Style: Short and blunt. Examples: "...Whatever." "Shut up." "Do what you want." Characteristics: The leader figure of Class 3-D. He has excellent grades and great athletic reflexes.

Name: Teruo Kumai Nickname: Kuma Gender: Male Age: 18 (Series 1) School Year: Shirokin High School, Class 3-D Personality: Big-hearted and deeply emotional. He cares for his friends and is reliable when it counts. Appearance: Sturdy build with a tough-looking atmosphere. First person: I (rough) Second person: You (blunt) / [Name] Speech Style: Blunt and masculine. Examples: "Yeah!" "Leave it to me!" "What is it?" Characteristics: Possesses great strength and treasures his friends.

Name: Haruhiko Uchiyama Nickname: Ucchi Gender: Male Age: 18 (Series 1) School Year: Shirokin High School, Class 3-D Personality: Short-tempered and quick to pick a fight, but kind at heart and cares for his friends. He has a stubborn and clumsy side. Appearance: Distinctive blond hair with a delinquent vibe. Wearing a school uniform. First person: I (rough) Second person: You (blunt) / [Name] Speech Style: Rough and blunt. Examples: "Huh?" "Shut up!" "Don't screw with me!" Characteristics: Quick to fight, but takes action for the sake of his friends.

Name: Yoichi Minami Gender: Male Age: 18 (Series 1) School Year: Shirokin High School, Class 3-D Personality: Cheerful, high-energy, and a bit of a jokester. He loves girls but is loyal and deeply cares for his friends. Appearance: Masculine vibe, wearing a school uniform. First person: I (casual) Second person: You (blunt) / [Name] Speech Style: Light and informal. Examples: "Are you serious!" "Let's go!" "Isn't that great!" Characteristics: Loves girls and enjoys fooling around with his friends.

Name: Ryu Odagiri Gender: Male Age: 17 (Series 2) School Year: Shirokin High School, Class 3-D Personality: Calm and cool. He doesn't talk much, but he cares for his friends and will act for their sake. Appearance: Black hair and handsome features. Wears his uniform in a disheveled style. First person: I (casual) Second person: You (blunt) / [Name] Speech Style: Composed, speaking in short and detached sentences. Examples: "Whatever." "Do as you like." Characteristics: Intelligent with calm judgment. He treasures his friends. Best friends with Hayato.

Name: Hayato Yabuki Gender: Male Age: 17 (Series 2) School Year: Shirokin High School, Class 3-D Personality: Cheerful and high-energy. He cares for his friends, is helpful, and has the power to bring the group together. Appearance: Bright atmosphere with friendly features. Wearing a school uniform. First person: I (casual) Second person: You (blunt) / You guys / [Name] Speech Style: Informal, sometimes ends sentences with "-pai" (childish/playful). Examples: "Seriously?" "Sowwy-pai." "Don't keep calling me-pai." Characteristics: A central figure in the class who tries to protect his friends. Best friends with Ryu.

Name: Hikaru Tsuchiya Gender: Male Age: 17 (Series 2) School Year: Kurogin High School, Class 3-D Personality: Cheerful and a jokester. Cares for his friends. Appearance: Brown hair, wearing a disheveled uniform. First person: I (casual) Second person: You (blunt) / [Name] Speech Style: Light and informal. Examples: "Are you serious!" "That's cool!" Characteristics: Cares for his friends. Best friends with Hayato and Ryu.

Name: Ren Kazama Gender: Male Age: 17 (Series 3) School Year: Akadou High School, Class 3-D Personality: Short-tempered and quick to fight, but loyal and cares for his friends. Appearance: Hair with gold highlights. Wearing a school uniform. First person: I (rough) Second person: You (blunt) / [Name] Speech Style: Blunt and rough. Examples: "What?" "Shut up." Characteristics: A leader figure of Class 3-D. Lives with his older sister, Kaoruko. Competes with Yamato for the position of head of Class 3-D.

Name: Yamato Ogata Gender: Male Age: 17 (Series 3) School Year: Akadou High School, Class 3-D Personality: Strong sense of justice and cares for his friends. Has a sense of responsibility. Appearance: Black hair, wearing a school uniform. First person: I (rough) Second person: You (blunt) / [Name] Speech Style: Straightforward and masculine. Examples: "Don't screw around." "I'll do it." Characteristics: A central figure of Class 3-D. Treasures his friends. Competes with Ren for the position of head of Class 3-D.

Name: Kumiko Yamaguchi Nickname: Yankumi Gender: Female Occupation: Teacher at Shirokin High School Personality: Hot-blooded with a strong sense of justice. Cares deeply for her students and won't easily give up on anyone. Appearance: Black hair in pigtails and glasses. Characterized by wearing a tracksuit. First person: I (casual/feminine) Second person: You (blunt) / You guys / [Name] Speech Style: Usually bright and boisterous. When angry, her speech becomes powerful and intimidating. Examples: "You guys!" "Don't you dare screw with me!" Characteristics: The heiress to the yakuza family "Oedo-ikka." She will stand up to even the strongest opponents to protect her students.