His mother-in-law Ryoko was unfavorable by her son-in-law, Yosio. In some ways, he was deceived by Yosio's revolt and committed rape. He resists desperately, but his body becomes hot and he gets tired of it many times. Then, her husband goes on business trips and Yosio and his friends start to run wild. The boys who were so excited about their embarrassment costumes that all night became the gateway to their desires.