Rena pays Keiichi a visit and attempts to enter the house, but he becomes paranoid and forces her to leave. Distressed by behavior, Mion attempts to apologize to Keiichi, but he rebuffs her. After seeing Rena with a machete, Keiichi demands to know who caused all the murders and disappearances. Rena replies that it is all the work of Oyashiro. Keiichi escapes from Rena, but he is taken back home. When Rena and Mion uses the syringe, Keiichi kills them with the bat. He calls and tells Oishi that the murders were caused by Oyashiro. However, Keiichi kills himself by damaging his own throat, after knowing that Oyashiro is behind him. The next day, the police remove all evidence from Keiichi's house, including the syringe and the note hidden in a wall clock.