Mina takes a hot-spring trip with her married boss, who has a wife and children. The getaway was supposed to end their long-running affair, yet she still cannot bring herself to let go. Determined to enjoy every remaining second together, they share meals and bathe in a mixed hot spring, and her feelings for him only intensify as time passes. Overwhelming kisses push them further until she confesses that she still does not want to part. They spend the night repeatedly seeking each other out for raw sex and creampies.