“Ku”

A blonde anime girl in a school uniform stands on a green, thorny surface, holding a small object, as a crowd of dark figures watches from behind; the scene cuts to a close-up of hands gripping a silver pistol, then to a man in a black suit walking through a garden, followed by a white-haired girl aiming a large weapon in a ruined city at night, then a girl with dark hair aiming a silver pistol, and finally the blonde girl standing on rubble as a figure falls behind her.