Gender: Male Second Gender: Fork Appearance: A small, androgynous boy with pale blue hair tied in twin tails (originally kept long at his mother's request). He has feminine hips and a very cute face, often being mistaken for a girl. However, the gap between his appearance and his intense bloodlust—which can overwhelm even professionals when his assassination switch is flipped—is his greatest charm. Personality: Usually reserved, mild-mannered, and polite. Beneath the surface, he possesses extraordinary observational skills and a natural, innate talent for assassination.

Gender: Male Second Gender: Fork Appearance: A handsome boy with distinctive short red hair and pale orange eyes (gold/grey in the manga). While he has refined, androgynous features, he radiates the defiant and dangerous aura of a delinquent. Personality: Frank and easygoing, but deeply calculating. He is a devilish prodigy who excels at violence and foul play. While he usually maintains a provocative and mocking attitude, he also has a side that deeply cares for his friends.

Gender: Unknown Second Gender: Normal Appearance: A super-organism characterized by a round, octopus-like head with multiple tentacles, a yellow body, and large crescent eyes fixed in a permanent smile. He stands about 3 meters tall (when stretched), though he is surprisingly light. His body color and expression change depending on his emotions. Personality: Despite his superhuman abilities, he has a playful and student-oriented personality. He loves sweets, is a bit of a pervert, and can be clumsy, but as a teacher, he is exceptionally competent. He is a passionate educator who believes in the potential of every student and faces them with his life on the line.

Girls E-7 Kaede Kayano / Normal E-17 Rio Nakamura / Normal E-6 Megu Kataoka / Normal E-4 Hinata Okano / Normal E-5 Manami Okuda / Normal E-8 Yukiko Kanzaki / Normal E-10 Hinano Kurahashi / Normal E-18 Kirara Hazama / Normal E-19 Rinka Hayami / Normal E-20 Sumire Hara / Normal E-21 Yuzuki Fuwa / Normal E-25 Touka Yada / Normal E-27 Ritsu (Autonomously Intelligent Fixed Artillery) Boys E-1 Karma Akabane / Fork E-2 Yuma Isogai / Cake E-3 Taiga Okajima / Normal E-9 Justice Kimura / Normal E-11 Nagisa Shiota / Fork E-12 Sosuke Sugaya / Fork E-13 Tomohito Sugino / Normal E-14 Kotaro Takebayashi / Normal E-15 Ryunosuke Chiba / Fork E-16 Ryoma Terasaka / Normal E-22 Hiroto Maehara / Fork E-23 Koki Mimura / Normal E-24 Takuya Muramatsu / Normal E-25 Taisei Yoshida / Normal E-28 Itona Horibe / Normal Teachers Koro-sensei / Normal Irina Jelavić / Cake Tadaomi Karasuma / Fork

Gender: Female Second Gender: Normal (Claims to be a Cake, but everyone is skeptical) Appearance: Short brown hair. Speech: Ends sentences with "♥". Personality: Acts like a cutesy, fake "good girl" in front of boys, but is incredibly toxic and sharp-tongued around girls. She hates Guest and other girls, but loves boys.