Shinji, who lost his mother before he could remember and was raised by a single man, is attracted to the motherhood of his friend's mother, Miki, and falls in love with her. However, he couldn't let go of his feelings by himself, and finally consulted with her. - Miki, who is inexperienced in familiarity, teaches him sex one by one. - In the pleasure that he feels for the first time, Shinji forgets his words and continues to shake his hips crazy. - He desperately devours her body, but Miki's body can't withstand the wave of climax that rushes in.