Shuichi Sakagami, a first-year member of the school newspaper club, is assigned to collect accounts from the seven storytellers his seniors have gathered — each one associated with one of the school's seven mysteries. When he opens the door of the meeting room, he counts only six people. The seventh has not arrived. Someone suggests they start without waiting. The room goes still and uncomfortable in a way that is hard to name. Shuichi starts the meeting. Whatever happens at the end of it has already been set in motion.