From M.N.M:Mizuki Aso, a super popular celebrity, is a 29-year-old father of a boy and is actually 13 years older than what he claims to be. He is self-absorbed and arrogant, forcing his look alike son Sana to do all the house chores and even the job as an idol. Today also, Sana's usual difficult day with his father is about to start.

Yui, codename "The Killing Doll" is a matchless assassin, programmed with an emotional override that makes him little more than a puppet. Hired out by a ruthless corporation, Yui loses control of himself whenever there's a job to be done. In the precious few moments he has to himself, he tries to build a life for himself with the guidance of a priest and fellow assassin, Miyagi.