A trio of close friends who have been together since childhood and even worked together. Mea and Itsuwa are married, but they have always had feelings for Tatsuya. The three of them decide to have a drink at home after work. As expected, they end up having a threesome in the middle of being drunk... None of them remember, so they have to have sex again to reminisce! With no clear boundaries, the three of them openly have creampie sex at the office! The childhood friends' relationship has become stronger and deeper than ever before!