Kyouji Nimura, a man staying at a hot spring inn, becomes embroiled in an extramarital affair with Arisa, a member of the influential Hidaka family, known for leading a major company in Tokyo. However, his intentions go beyond a mere fling, as he plans to corrupt both Arisa and her daughters.

Kyouji Nimura’s schemes slowly corrupt the Hidaka family. Manatsu and Fuyuka succumb to Kyouji’s cunning manipulations. Manatsu offers herself completely, doing as she’s told for Fuyuka’s sake. Meanwhile, Fuyuka is kidnapped by an unknown assailant and wakes up restrained and completely naked. Trapped in a situation from which there is no escape… Eventually, Arisa, Manatsu, and Fuyuka all fall victim to Kyouji’s desires. Their bodies, defiled and drenched in semen, drown in pleasure as they descend into utter degradation.