Rintarou's once-serene married life is shaken when he senses his wife Misako has become unusually radiant and distant. Hiring a private investigator reveals shocking photos of Misako in passionate acts with her former high school boyfriend, Kuroda. Rather than rage, Rintarou feels an intense, forbidden excitement.

He confronts Kuroda and strikes a dark deal: in exchange for overlooking the affair, Kuroda must secretly record and deliver videos of his sexual encounters with Misako. As the recordings arrive, Rintarou becomes increasingly obsessed with watching his once-modest wife transform into a lustful woman who eagerly pleasures another man.

The situation escalates when Kuroda takes Misako to a public park for risky outdoor play, forcing her into disguises, exposure, and intense acts while Rintarou secretly watches. What began as simple infidelity evolves into full-blown netorare (cuckold) depravity, where the husband not only tolerates but actively encourages his wife's descent into shameless pleasure.

This OVA explores themes of jealousy turning into arousal, the corruption of a faithful wife, and the dangerous thrill of voyeuristic cuckolding.

Based on the erotic game by Orcsoft.