Needing a PC for her family business, Sumire asks her husband's former subordinate, Hashimoto, who works in IT, to help her purchase new equipment. However, Hashimoto harbors an unusually strong sexual desire, and has gradually become infatuated with Sumire's delicate beauty, secretly lusting after her. For him, this situation is a once-in-a-lifetime opportunity. Taking advantage of their private time together, he aggressively seduces her and forcefully takes her virginity. Married for years, Sumire's mature body succumbs to sudden, overwhelming pleasure—unable to resist, she claws at his skin as ecstasy consumes her.