From the beginning of their marriage, her husband, who was a workaholic, had been living a cold life with her. Instead, Akiyo's love, which had nowhere to go, was poured into her son. As the dutiful son continued to watch his mother, he began to want to become a father figure and support his mother. When the mother and son, who are in love with each other, realized their feelings for each other... their lips naturally met. The long, deep kisses and embraces that seemed to last forever transformed the love and desire between mother and son into an even deeper bond...