ADN-803 Midsummer, sweat-soaked confinement training in a sealed room. The full story of a married woman who is repeatedly violated almost every day for two years until she slowly loses her sanity. Ayaka Natsume

Ayaharu had been spending peaceful, ordinary days with her husband and her son, who had just started working, as a family of three.

Meanwhile, Tohyama, who had been close friends with her son during his school days, had developed feelings for Ayaharu, the mother of his friend.

Even as the days passed without seeing her after job hunting began, those feelings did not fade; instead, they grew into a twisted obsession.

At last, Tohyama visited Ayaharu, determined to make her his own.

Without warning, Ayaharu’s calm daily life came to an end.