Atsushi found himself frequently visiting Makoto's house for reasons he couldn't quite explain. The real reason was his encounters with Makoto's mother, Eriko. Captivated by her youthful yet mature charm, he was irresistibly drawn to her—despite her being a mother of a boy his own age. Her subtly kind yet seductive demeanor stirred something deep within him. But one day, Atsushi accidentally witnessed Eriko secretly filming herself as she indulged in self-pleasure. In that instant, his innocent admiration twisted into something far darker and more chaotic. Now in possession of the footage, Atsushi no longer saw her as an object of affection, but as someone he could fully control and use for his own desires.