Hajime believes he has discovered the killer's identity and calls everyone together. He explains that Kagetsu does not exist and how the murders were committed. Hajime tricks his suspect, Shuichiro Kamiya, into sitting in Saotome's seat because earlier Hajime had discovered a crossbow aimed at the seat. Kamiya suddenly jumps out of the seat when the clock strikes 12, revealing that he is the killer and planned to kill Saotome with the knife...