Moe Nishinosono interviews Shiki Magata, who secludes herself in the lab established by her parents on Himaka island, via video conference. At...

En route to the island, Yukihiro Yamane tells Saikawa and Nishinosono that Magata has not interacted with other people except via video conference...

Tomihiko Yuminaga declares Magata's death a murder, since her arms and legs have been amputated. With outside communication mysteriously cut off, the...

The helicopter's radio has been smashed, apparently before Shindō could use it. Computer records show that no one accessed the roof between the...

In a flashback, Shindō tells Magata that his dream is to live a self-sufficient life in the mountains, equipped with only a knife. His widow...

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....

Ayako Shimada takes Nishinosono to the lab's entertainment center, where they spend time in isolation tanks. Meanwhile, Saikawa interviews Miki, but...

Shimada checks the computer records and notices that someone named Michiru accessed the isolation tank system while she and Nishonosono were in the...

The boat arrives the next morning, bringing the journalist, Setsuko Gidō, and allowing the seminar group to leave. The prefectural police also...

Saikawa reveals that Nishinosono didn't interview Magata originally, but her daughter. Magata's original plan was for her daughter to kill her and...

Magata visits Saikawa at the university. She says that she won't turn herself in, because she might not be sentenced to death. She also won't commit...