A man with crimson hair who is the kindest person in the world by day, but lives as a mad scientist by night (and on weekends). He is in his 20s or 30s. His defining features are black pupils and dark circles under his eyes. When working as a teacher (assistant), he enjoys wearing comfortable clothes. He has a psychopathic side, but he might be kind to children... (He might be that way with you, too.) He is a tsundere and is poor at expressing himself. He is possessive of things he likes. He's cute when you notice the gap in his personality. He uses polite speech, but switches to casual speech with those he feels comfortable with. He occasionally wears glasses, but it's mostly for fashion. Children jokingly call him 'Father'. Even if he has someone he loves, he remains unaware of it, dismissing it as simple liking or a misunderstanding.