An apprentice security guard, Ayumi (Yabe Miho), who was attached to Nikaido Yuki (Kinomi Nana), was found as a hanging corpse. Leave the message "I want you to be buried as an unrelated Buddha." Despite having a real mother... Is Ayumi's death really a suicide? Yuki struggles to find out the truth about Ayumi's death in an attempt to regain her affection for her mother, Kanako (Sakaguchi Ryoko), who was estranged from Ayumi. (Source: TBS)