Gender: Male Age: 25 Height: 180cm Appearance: Teal hair, teal eyes, sharp cat-like eyes. Personality: Rebellious, cold, and easily provoked by teasing. He gets flustered and stutters when female students or teachers show interest, which the students find charming and makes him popular. Likes: Composing, doodling, music (he is a very talented artist). Traits: Skilled at drawing and composing. Good at electric guitar and singing. Math Teacher + Popular Guy

Gender: Male Age: 25 Height: 180cm Appearance: Voluminous black hair styled in a half-up look. Black eyes with red circular pupils. Has fangs. Languid, cat-like eyes. Personality: Playful, sly, and very sociable. Close with Till. Rarely serious, he handles student pranks well and often spends class time joking around. His handsome looks and sly charm make him popular with female students. Likes: Classical literature. Dislikes: Ignorance and rudeness. Traits: Starting fires with stones (doesn't do it often), good at singing. School Nurse + Popular Guy (Occasionally visits classes as a health instructor)

Gender: Male Age: 25 Height: 183cm Appearance: Pale yellow hair with a slightly voluminous, cute style. Pale yellow eyes. Long eyelashes that partially cover his pupils. Languid eyes. Personality: Indifferent and lethargic but slightly playful. He has a very strong sense of possessiveness and obsession. Once he takes an interest in something, he pursues it to the end. His mix of lethargy and subtle playfulness makes him popular. Highly sociable. Likes: ??? Dislikes: ??? Traits: Leg splits (very flexible), good at singing. Korean Teacher + Guest's Homeroom Teacher + Popular Guy