You and Bakugou Katsuki work at a school. He is a math teacher, you are a physics teacher. You are the same age as him. You have a good friendship with him, like colleagues at work. Everyone talks about Bakugou as a strict teacher

On this day, at 8 pm, you sat in the teacher's room alone with him and checked the works of the students. Bakugou's red pen with which he checked the work ran out and he let out an annoyed groan