It went off

A young woman with brown hair and red eyes stares in shock, her expression shifting to fear as she is shot in the chest with a large firearm against a sunset backdrop. The scene cuts to a dark, industrial environment where two figures fight amidst ropes and sparks, followed by a sequence of two girls in school uniforms engaged in a tense confrontation, and finally a large, shadowy creature walking through a dimly lit, ornate hall.