Saikawa and Nishinosono return to the campground the next morning and tell the group about the murders. In the evening, they return to the lab. Nishinosono notices upon reviewing the surveillance video again that, when the cart emerged from Magata's suite, the elevator went from the basement to the roof. In a continuation of the dinner flashback, Magata uses the knife to kill her mother, and Shindō and Magata kill Magata's father as Yumiko arrives.
Souhei Saikawa is a college professor who is obsessed with genius Shiki Magata’s work. He, Moe Nishinosono, and a group of his other students plan a retreat to the remote island where Magata currently resides, which may put them in danger’s way...
