Shinkōmi, a special administrative region of Japan ruled by the Takasato Group, is a city of rampant crime propelled by the country’s crippling recession. Here, fights and murders are a daily occurrence. In such a city, a certain presence is vital. Enter Clean dishes.

Clean dishes, also commonly known as "Sara-ya," is a cleaning service that tidies up the rooms where people have died, by suicide or by other means. The story revolves around Baku, a worker at Clean dishes, and his partner Shiro, who is eager to die. (Source)