A trip to the hot springs with her husband's boss, the Koyama couple, has been decided, and Nanami, the wife, is a bit gloomy. However, they soon warm up to each other and spend a harmonious time... But Koyama can't forget the warmth of his accidental touch with Nanami, so he assaults her while she's asleep. Unlike her indifferent husband, this middle-aged man relentlessly torments her, making Nanami reach climax several times. Once her body has experienced pleasure, it begins to be captivated by her mind and cannot resist the surging desire...
