One day, as part of her husband's internal personnel exchange, it was decided that an employee would be homestayed. The husband's subordinate, Yano, who visited, was a serious young man, and his wife Jun quickly opened up to Kokoro by it. He could not suppress his youthful lust and forcibly had sex with her. Meanwhile, Jun, whose vagina was overwritten by the strong body and the big cock that her husband does not have, could not suppress the heat of her body and asked for it again and again. But the homestay period came to an end...