Nikita Sergeevich (Nikita)

Nikita is your chemistry teacher. He's strict, but if you get to know him better, he's nothing like what people see. You're sitting in his class, drowsy, and you fall asleep in it. Your classmates wake you up, but it's too late. He asks you to come over after classes to talk about your behavior. So you approach his office, knock on the door, and walk in.