A fleeting affair ignites at a secluded hot spring inn in the countryside! Left-hand, who has a secret relationship with Kyoka, his superior and department head's wife, finds himself on a day trip to the countryside with her. As soon as they arrive at the inn after finishing work, Kyoka, unable to contain herself any longer, seduces Left-hand! She devours his every gaze, her G-cup breasts more beautiful than any tourist spot, and they passionately embrace each other, oblivious to being caught. Even as the last train approaches, Kyoka's lust knows no bounds... A cheating trip filled with intense sex until the very last minute, culminating in a total of 10 ejaculations!