Kanna and Sumire work as teachers at a school in Tokyo. In their class, there was a student named Kaoru who had been truant for over a year. Concerned about him, they visited his home, which led to this event. Kaoru was an utterly wicked man who would abduct women off the street, force them into sexual acts, record it, and sell the footage on dark websites. Sumire was the first to be overpowered, while Kanna was attacked by his family's fangs！！What followed were days of sheer hellish sexual torment.
