Chihiro is a full-time housewife, and her husband earns a good salary, so she lives a life of luxury. However, Chihiro has a secret... When she was an office worker, the men in the company used to play with her every day as their common property. Her husband, Takuya, didn't know about this. One day, Kita, the leader of the men who had been gang-banging Chihiro while Takuya was away, comes to visit and says, "Your body is starting to ache, isn't it?" Unable to escape from her extremely promiscuous past self that she thought she had left behind, Chihiro gives in to them...