One night Hirao was returning home after he went to an event to meet his favorite idol, he was dreaming about the handshake with the idol not noticing his surroundings, that night Suzuna, Hirao's coworker, was trying to escape from a stalker, coincidentally they knocked into each other in a certain corner, there a strange man holding a package got mixed into the little incident. The package Hirao was holding was identical to that of the strange man, the strange man then proceeds to guess which one is his package  and give the other to Hirao. When Hirao gets home and open the package he is shocked to find a small living thing inside it and a manual: "This sexandroid will transform and take any appearance you wish and serve you. It will grow in 5 minutes and in one week..."