Waka heard that her ex-boyfriend, who inherited the company from his father, was not doing well, and that a large competitor was planning to make it a subsidiary and marry his daughter. Having distanced herself from him and broken up, Waka is now a successful innkeeper. She was happy in her days of constant sex with her union leader, her casual sex partner. Then, one day, her ex-boyfriend, whom she could never forget, came to the inn. As soon as they entered the room, they desired each other. She was with both her casual sex partner and her ex-boyfriend…