Doki Doki Doki

Three anime-style girls in school uniforms stand in a dimly lit, possibly industrial setting with a large skull in the background; the scene begins with two girls, one with purple hair and one with black hair, the purple-haired girl holding a knife, then transitions to a pink-haired girl, followed by a shot of all three girls together, and ends with a close-up of a red-haired girl as the text "JUST MONIKA" appears.