Ooba (Eiji Akaso) is arrested for arson. When Haneo (Tomoya Nakamura) goes to visit him, Ooba confesses he did it. However, he keeps his silence on the motive.
On top of that, from the burnt remains of the park restroom a corpse is found. Despite believing in Ooba’s innocence, Ishiko (Kasumi Arimura) and Haneo can’t help but to be shocked.
The two visit the scene of crime and go meet Ooba’s family as well…