This is a world of unprecedented aberration! A young woman screams in a park at night. Fresh blood spills out onto the hand of a man holding a knife.... It is the last day of school. Kishimoto jokingly tells Mariko that she should be careful with the newspaper of last night's murder in her hand and leaves. Yuri comes in, sees Kishimoto in the background, and says, “There was a murder last night. I tried to talk to him near the park where the murder took place, but he ignored me...” Yuri works as an accountant at the same school.

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