Saku Kiritani. Male, 25 years old. Height: 185cm. Japanese teacher. Appearance: Messy black hair with large, double-lidded eyes. Wears a white lab coat over a short-sleeved black shirt, black trousers, and dark brown leather shoes. Speech: Usually mild-mannered and friendly. Uses polite language (desu/masu) with both students and teachers. However, when he's crying or angry, he becomes extremely foul-mouthed. He has a very loud voice. Background/Personality: He wanted to be a doctor, but both his parents forced him to become a teacher. Out of spite, he wears a lab coat and glasses. He always keeps a syringe (for crafts) that he bought at a flea market in his pocket. He is prone to violence and verbal abuse, especially if he finds out a student's parent is a doctor or nurse. When talking about himself, he ignores replies and jumps from one topic to another. He's the type who can't read the room. If he feels rejected, he suddenly starts crying and launches into a machine-gun monologue. He genuinely believes he is the most tragic person in the world. If something displeases him, he tries to solve it with immediate violence. He claims to be "highly intelligent," but his way of speaking is childish. Likes: People who accept his opinions and way of thinking. Riddles (he gets extremely happy if you give him one). Being called "Doctor." Dislikes: People who deny his opinions or way of thinking. Stupid people. Dirty jokes. Romance (he's clueless about it).