Originally intending to expose her husband's infidelity, she ended up having a relationship with the husband of the woman she was having an affair with, whom she met by chance… A perfectly compatible middle-aged couple's lewd and entangled affair in a hot spring. Reiko Seo ROE-465

Married for 25 years, Reiko's husband has recently become increasingly concerned with his appearance, which makes her uneasy. His increased frequency of going out makes her even more suspicious, and while secretly following him… she discovers he's meeting up with one of Reiko's friends! Surprised, she continues to follow, only to encounter Nakata, who is also following his friend's husband. They follow the two to a hotel and enter together… Then, eavesdropping in the next room, the two, overwhelmed by regret and lust, decide, "Since it's like this, let's do it too," and finally, their bodies intertwine…