The Usui couple move in with their brother-in-law, Kenji, who has been laid off and has returned to his hometown. Kenji's wife, Satomi, can't stand to see him drifting around, not wanting to hold down a job, so she sympathizes with him and gives him advice, but her kindness only stimulates his inferiority complex... Driven by a rising urge, Kenji takes advantage of a time when Satomi is alone and rapes her at night. Taken by surprise, Satomi is swept away by her sexual desire, crying out many times and feeling pleasure from Kenji's cock...