1x7 - The Perfect Insider

Ayako Shimada takes Nishinosono to the lab's entertainment center, where they spend time in isolation tanks. Meanwhile, Saikawa interviews Miki, but she has no idea why anyone would kill Magata or Shindō. During Nishinosono's isolation-induced hallucinations, she has a conversation with Magata about the plane crash that killed her parents. In a continuation of the dinner flashback, Magata tells Shindō that the story they'll tell is that Magata killed both her parents and that Shindō tried to stop her.