Subete ga F ni Naru

In a research facility hidden away on a remote island, genius programmer Shiki Magata has lived as a recluse for years. She rarely sees guests, but associate professor Souhei Saikawa and university student Moe Nishinosono still seek her out. However, their meeting is cut short when they are caught up in a locked-room murder mystery. Everything is not as it seems, and many secrets are hidden. Within an isolated facility, a seemingly impossible and gruesome crime takes place, and Saikawa and Moe must unravel the truth behind the murder and Magata's shrouded past. The story of the original novel revolves around Souhei Saikawa, a member of the Saikawa Research Lab. On a vacation held for the lab, he meets Moe Nishinosono, the daughter of his mentor, who joins the group on their vacation despite not being a part of the lab. After meeting each other, the two end up finding a corpse. The two work together to solve the mysteries of what becomes a serial murder case.