Fumino has a strong libido and, unsatisfied with her relationship with her husband, often pleasured herself. It had been a long time since she last had sex with her husband, and she constantly indulged in self-gratification. Her son also harbored intense sexual desires, secretly spying on his mother. That day, as Fumino was masturbating, her son could no longer restrain himself and suddenly appeared, assaulting his exhausted mother. She resisted at first, but ultimately was overpowered, and their forbidden relationship began. One day, after finally having sex with her husband again after a long time, Fumino was seized by her son, who had been watching them. By then, she had already accepted him completely…