After divorcing her husband, Ryoko has lived alone with her son. However, at some point Ryoko realized that she loved her son more than her husband. "I don't have to worry about that man anymore," the moment she thinks, Ryoko and her son fall into a forbidden relationship. The people who have spent the longest time together in their lives yearn for each other intensely, and nurture a passionate love that devours without being disturbed by anyone.
