Rin, her best friend, is consulted about her husband's unfaithful habit of cheating. Rin throws a spoon at her husband who keeps making excuses no matter how much she tries to advise him, and rushes to find out the cause of his affair. "Huh? Women just come to me because I have a big dick and I'm good at sex? Stop joking." There's no way that's going to happen. The cause of cheating is so unrealistic. However, as Rin was about to laugh and laugh, her body started to tingle when she saw something so magnificent that jumped right in front of her eyes...