The leg of a resident is found in a golf bag and the rest of the body is missing. One of the other neighbors reveals that she wrote the victim's name. Some residents decide to contact the police about the murder game.
When Nana is interviewed about Asao's elevator fall, she learns that the murder game has only been investigated by one detective and becomes concerned.
The person whose name is written by Tamiya is killed in front of Nana and Shota. Since Nana is the one who was supposed to kill this victim if there really is a swap murder game taking place, a lot of questions arise.
Shota and Kuroshima are locked up at Sanae's place because they noticed something strange about her place. Meanwhile, Nana learns that Shota is absent from work, and she visits Sanae to look for him.
