A fleeting affair flares up at a secluded countryside hot spring inn! Saji has been in a secret relationship with Kyoka, who is also his boss and the wife of his department head, and the two of them go on a day trip to the countryside alone. As soon as they finish work and arrive at the inn, Kyoka can't help but seduce Saji! He devours Kyoka's G-cup breasts, which are more beautiful than any tourist spot, and they pursue each other hotter than a hot bath, not worrying about being found out, but even as the last train approaches, Kyoka's sexual desire is not satisfied... A total of 10 ejaculations on an affair trip, with sex going wild until the last minute!