Books (novels and essays) Domestic mystery Until the classroom is alone

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Domestic mystery
Good-bye. Fake friends I don't want to see again. A series of student suicides at Kita-Kaede High School. When she visited her childhood friend's house, who had become out of school due to shock, Kakiuchi was told by her, "All three of them did not commit suicide. They were all killed," and tried to find out the truth. New Generation : Seishun Mystery!