Yura-chan is a part-time worker. She's cute, charming, and a really good girl. He's my subordinate, he's quite a bit younger than me, and most importantly, both I and Yura-chan have girlfriends, so I keep these feelings to myself and work hard. One day, after getting late at a drinking party at work, I was alone with Yura-chan, who had missed the last train. She didn't seem to be in a good mood either, so we went to the hotel. Driven by drunkenness and sexual desire, we enjoyed cheating sex that felt a little immoral until the morning.