I'm sorry for suddenly exposing such a shameful side of myself... Let alone having sex with my own son and actually feeling pleasure from it... I've failed as a mother... No, I've failed as a human being. I know I bear responsibility for letting things come to this. After her husband's third-year memorial, Fumino Ishikawa began living with her son and his wife. Sharing household duties, she maintained a good relationship with the couple and they lived together harmoniously. But loneliness grew inside her in the absence of her husband, and she gradually fell into the habit of masturbating daily to distract herself. That night, she was once again pleasuring herself to relieve her bodily cravings when her son walked in on her. At the very moment she reached climax, her son appeared and forcibly thrust his erect cock into her, despite her protests. Though it began against her will, Fumino eventually gave in to her son's advances. Yet over time, it was she who began craving him more and more. Then one day, something strange happened to Fumino's body—her period stopped. Feeling as though her womanhood had come to an end, she confessed this to her son and told him they should end their relationship... "But the moment I told him my period had stopped, we sank even deeper into forbidden taboo..."