'the incident'

In a dimly lit classroom with green lighting, a group of students in school uniforms stand and sit among desks, with one girl in the center clasping her hands. The scene cuts to a close-up of a character with green hair and a purple mark on their face, followed by a rapid sequence showing a character in a hooded outfit, a close-up of a red and pink eye, a green-haired girl with a serious expression, and finally a character with pink hair and a green outfit holding a gun.