Shinji, who lost his mother before he could remember and was raised by a single man, is drawn to the motherly nature of his friend's mother, Miki, and falls in love with her. However, he is unable to express his feelings on his own and finally consults her. Miki teaches him how to have sex one by one, even though he is inexperienced and inexperienced. Feeling the pleasure for the first time, Shinji forgets the words and continues to shake his hips in a daze. As he desperately devours her body, Miki's body is unable to withstand the waves of climax that wash over her...