His father remarried and his beautiful young stepmother Ichika. Makoto witnesses their nightly lovemaking. As a virgin, he complains to his stepmother that the sight was too intense for him and he is unable to do anything. Feeling sorry for Makoto, who lost his mother at such a young age, Ichika offers him sexual services. Eventually, she finds herself accepting Makoto's increasingly demanding demands. She even allows him to pour raw semen into her vagina...