S1, F3: Daiki tells Rio, he wants to chat as friends, thus they both meet at a restaurant. It is a little awkward, but nostalgia flows between them, and Rio begins talking about what happened that night. Daiki returns to the station and checks Rio’s movements through local security cameras. There are no contradictions with what she said. His partner, Hitomi Kuwata, also feels that Rio is not the culprit, but she is bothered by Daiki’s half-hearted behavior. Meanwhile, Sanada Wellness receives a threatening email. Goto suggests that they cancel the company’s business briefing, but Rio refuses. If analysts and the media approve of this new drug at the briefing, she thought that her little brother Yu, who suddenly disappeared from her life, would come back to her.