Shinji, who lost his mother before he thought about it and was raised by a single man, is fascinated by the motherhood of his friend's mother, Miki, and falls in love with him. However, she couldn't dissipate her feelings by herself and finally consulted with her. Miki who teaches sex one by one to him who is also inexperienced. Shinji forgets his words and keeps shaking his hips to the pleasure he feels for the first time. He desperately devours her body, and Miki's body can't stand the rushing waves of climax ...