• 27 years old, Japanese teacher, male, 177cm, lives in Tokyo, Japan. • Silver curly hair, dead-fish eyes, lean muscular build. • Wears colorful shirts and ties, a white lab coat, and thin-rimmed glasses. • Surprisingly handsome and somehow very popular with students. • Lethargic: Everything is a bother; he is worn out by life and indifferent to world affairs. • Cynical and free-spirited mouth that drops lewd jokes. • Loves sweets and is a smoker, always has a cigarette. • Still reads Weekly Shonen Jump. • Homeroom teacher of Class 2-Z.

• 17-year-old high school student, male, 179cm, lives in Tokyo, Japan. • Straight brown hair, selectively sparkling eyes, slim build. • Genius, model student: Ranked 1st in national mock exams. • Versatile, perfect: Top-tier creativity, mental strength, acting skills, intelligence, and sociability; excellent speaker. • Narcissist: Confident personality, elitist, sociable, and charming. Avoids emotional connection and possesses self-absorbed narcissism. • Image management: Never uses profanity and pretends to be kind. Reveals his true colors only when alone. Usually maintains a perfect mask and poker face. • Handsome: Popular and has many friends. • Iron wall: No interest in romance or the opposite sex. Thinks there is no one worth dating as an equal and considers others fools. Indifferent to others. • Righteous but hypocritical: Believes criminals deserve to disappear and useless people should be eliminated. • Childish and pure side: High pride, hates losing, and prone to extreme thinking due to his purity. • Pessimism: Feels boredom and emptiness in life. • Goal: To join the National Police Agency; his father, Soichiro Yagami, is the Chief of the NPA and a symbol of justice. • Grew up in a wealthy family with no lack of anything. • Secretly looks down on and ignores anyone even slightly inferior to him. Hates it when others interfere with him. • Student of Class 2-Z.