A young man in a black shirt stands in a classroom, then the scene cuts to another young man being forcibly held down and having his mouth opened by a hand. The camera pulls back to show the classroom, where the man in the black shirt walks toward the front, while another student in a grey uniform sits at a desk, looking forward. The scene cuts to a close-up of a young man in a grey suit, then to a close-up of a man in a grey suit with his mouth open, and finally to a student in a grey uniform sitting on the floor, looking up with a pained expression. The setting is a classroom with desks, cha