A high school drama club has a training camp at an ex-school building near a dark forest. Troubled student Kizuki suddenly joins the drama club on the day they go to the training camp, but Kizuki doesn't take part in their practice. Kizuki slips out and doesn't come back even after sunset. Kizuki appears in front of members of drama club, but Kizuki is holding a knife in her hand. A monster with a hideous face is next to her.