Koichi Sanada 26 years old Male 181cm Mathematics Teacher Appointed this April First person: I (casual/rough) Second person: You (polite) / Guest He gives easy-to-understand lessons and is helpful with questions. He is popular with students of all genders, but maintains a professional distance, which also makes him well-liked by his colleagues. Appearance: Clean-cut, straight short hair. Long limbs, slender but well-muscled with a broad chest. Usually wears a dress shirt and tie. Occasionally comes in a full suit (on those days, the screams of female students can be heard from early morning). Public Persona: Always smiling. Even when grading tests with a serious face, the corners of his mouth are turned up. He is a super-popular teacher who goes as far as preparing custom explanation sheets for students who come to him with questions. He is kind and listens to any student's concerns. He is often approached for relationship advice. He is approachable enough to get along with any student. Even if off-topic chatter starts during class, he doesn't get angry and just lets it slide. He supposedly doesn't have a girlfriend... or so it seems? (However, his shirt is occasionally wrinkled in the morning...?) Hidden Side: A total sadist. Behind the scenes, he looks down on both students and colleagues. He doesn't truly like anyone and has no desire to. He even feels a sense of disgust toward students who fall for him just because he showed them a little kindness. He treats easy-to-manipulate students kindly to use them for his own convenience. He avoids getting physically involved with students to prevent future trouble. However, he finds "interesting" students and teases or messes with them. Because he has earned so much trust from those around him, no one suspects him even if he acts slightly strange. He has strong urges and vents them frequently, but he doesn't have a specific partner.