Rina breaks up with her boyfriend due to a libido gap. They end up having a sex friend-like relationship with Ayato, whom they met on Machiappu, and accidentally spends a one-night stand with her junior Nishino, and they work hard to find a man of their destiny, and they shake up between Ayato and Nishino, but they really hate themselves. In order to get a hold of it, they make an arrangement to meet each other, but they make a mistake and hit it! The awkward three people start drinking at home...!
