First, there were eight, and now there are six. With Mitsuru and Shimizu now missing, everyone is on edge as they try to find a way out of their horrifying circumstances. The remaining students continue to suspect that the person keeping them trapped is among them, but Shimizu also suggested a bizarre, new theory- they may be inside the mind of the person who took their own life at the school festival. Takano thinks he might just know who their tormentor...