During some era, on an island that exists somewhere in Japan, there are people who exist there who feel confined. Idle days pass for men and women unable to connect, and women who can not grasp the importance of such connections.

The story begins with an indiscriminate slaughter at a cafe frequented by young people. Security camera footage shows an unarmed man with shaven head, able to seemingly kill people with a simple touch. Police investigation leads to the suspected identity of the murderer: middle-aged man named Tarō Yamada. When the police conduct a search of his apartment, they find the rotting corpse of a woman. Adapted from Sato Jiro's own debut manga.