A husband finally takes Mita Sakura on a hot-spring trip, where she unexpectedly encounters old classmates and immediately acts distant and uncomfortable. He later realizes he should have taken her away. Though furious over what followed, he cannot deny being aroused by the side of his wife he had never seen: she endures a relentless, well-endowed threesome with the sleazy classmate she despises until repeated orgasms completely break down her resistance. He presents the full story in all its painful detail.