Bastards

A girl with black hair lies on the floor, her face contorted in pain as a hand presses into her head, while a red-haired girl looks down at her with a determined expression; the scene cuts to a wider view of a school hallway where a girl in a black and white uniform is being held down by another girl, while a third girl with brown hair stands nearby holding a green object, and the sequence ends with a close-up of a hand gripping a blue pole, with water splashing around it.