"Stepmother, you want a child, don't you?" While my aloof husband was on a single assignment, I was repeatedly penetrated and impregnated by my sexually voracious stepson, Shinichi... Yuuka Niizuma JUR-735

Yuka is married to a man with a stepson, Shinichi. Her relationship with Shinichi is harmonious, and on the surface, she lives a seemingly fulfilling life. However, she is unable to conceive due to her indifferent husband, and while she secretly desires to, she is also troubled by this. Then, her husband goes on a long business trip, and suddenly she begins living with Shinichi alone. Initially, things go smoothly, but as his intimacy increases, Yuka feels a strange unease. Although she dismisses it as a figment of her imagination, Shinichi's actions become increasingly obvious…