ตอนที่ 23: ฮาจิเมะเปิดเผยความจริงเบื้องหลังคดีฆาตกรรมและข้อเท็จจริงที่ว่าคาเกทสึไม่มีอยู่จริง

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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. He confesses that he and Fuyuko loved each other, referring to each other as Christine and Raoul ("R"), characters from the opera. After the couple overheard Hidaka, Kiryu and Saotome say they conspired to scare Fuyuko, the distraught Fuyuko suicided and so he sought revenge for her death. However, before he can be stopped, Kamiya runs to the roof and jumps, killing himself to be in heaven with Fuyuko. (Source: Wikipedia)