wtf training

A female student in a school uniform stands by a door, holding a red cassette tape, then turns and walks away. The scene cuts to a man in a school uniform standing over another student lying on the floor in a music room, holding a pose as the lighting shifts from green to red. The student on the floor raises their legs, and the man maintains his stance as the lighting changes. The female student reappears, looking at the cassette tape, then turns and walks away, closing the door.