Miki, a mother, is worried about her son Yoichi's uncontrollable delinquent behavior. She knows that she is the cause of his wild behavior, but she can't say anything strong to him. Then, she witnesses Yoichi forcing himself on his childhood friend. Miki witnesses her son's desire that has nowhere to go. If he's going to cause trouble for others, she decides to satisfy his sexual desire. Having crossed the line, the two of them sweat and continue to indulge in pleasure over and over again...