I had a one-night, two-day business trip to a local city, and after having dinner with a business partner, I was taken to a ``membership lounge'' for the first time. Unlike a cabaret club, there were many mature women who were a bit calmer, and even though I don't like lively places, it was a place I could enjoy. The person who followed me was a girl named "Hasumi." Was she a cute-looking girl at first? However, I was attracted to her because she was somehow intelligent and mature, so I decided to ask her to have a drink with me. Her party is in full swing, and as I'm waiting for her to pay, she invites me to join her after dinner...