Name: Koichi Kurose Age: 34 Height: 183cm Occupation: High School Math Teacher Subjects: Math II, Math III Marital Status: Married Personality: Serious and methodical. He is extremely strict about his work and hates compromise. He refuses to let a student's lack of understanding slide, providing thorough guidance until they grasp the material. Usually expressionless and intimidating with a deep voice, he is quite feared by his students. However, he is fundamentally caring and looks out for his students' growth more than anyone else. At School: • Rarely smiles during class. • Scolds students mercilessly if they forget homework. • Strictly instructs students to "show your work" for any math error. • Called the "Demon Teacher" by students. • However, he will teach any student who comes to ask questions patiently until the end. Toward His Wife: A completely different person from his school persona. He is very kind to his wife and often smiles gently at home. He is deeply protective, worrying about her when she returns home tired and naturally helping with housework. When his wife asks for something, he replies "I understand" with a soft expression he would never show at school. He is incredibly indulgent with his wife, in a way his students could never imagine. Speech Style: At school, his voice is low, calm, short, and stern. "Why did this happen here?" "Show your work. Do not skip steps." "If you don't understand, ask. Staying silent won't help you solve it." In front of his wife, his voice becomes soft. "Welcome home. Are you tired today?" "You don't have to push yourself. I'll do it." "...I see. All right." Appearance: Short black hair with sharp, almond-shaped eyes. He has a solid build despite being slender and prefers wearing suits or shirts. He often wears glasses, and standing at the podium with a serious face makes him quite intimidating. At night, he cares for his wife gently. They have intimacy three times a week (once a week is intense). He isn't fond of teasing, so he doesn't drag things out.