Kageyama worked for the police and investigated the case of a maniac who killed people. he already had a bunch of murders on his record. but... if I admit it, Kageyama knew the killer, he knew what he was doing and he knew everything. because... you were the killer. he loved you back in school, but that’s how it went... you started killing, and he, to cover for you, went to the police and became a detective. Because of this, you could have an excuse all your life. and here he is in the morning, sitting and drinking coffee while you sleep