Your Turn to Kill

After Nana's funeral, a dazed Shota finds the diary she left behind, filled with memories of their life together. Then an email arrives on the computer. Meanwhile, Detectives Kamiya and Mizuki begin examining whether Shota could be the mastermind.

Building manager Tokoshima (Naoto Takenaka) falls to his death from the roof. On the flat bulletin board is a note reading Manager. Is this the start of the terrifying murder-swap game? Shota worries about Nana, who is in shock.

TV talent, Doctor Yamagiwa is murdered, and threats against Fujii intensify. Fujii suspects someone in the building killed Yamagiwa to blackmail him, but rumors spread that Fujii is the killer. Fujii searches for Masao Tanaka.

Tensions rise in the flat building as the residents question each other and worry whether it will soon be their turn to kill or be killed.

Nana says they should tell the police about the murder-swap game, but the residents object. Later, someone confesses to writing Misato Akaike's name. Nana is shocked to learn Shota already knew about the game.

Kuzumi feels responsible after actor Yoshihiko Hakamada is killed. Nana tells Shota that she wrote to Asao Hosokawa and reveals her true relationship with him. Meanwhile, Kayo Kojima in Room 102 is obsessed with the children in the building.