Risa Wakatsuki appears exclusively in the third episode of an OVA series. She serves as a school teacher characterized by pride and a notably curvaceous figure, which draws considerable attention from male students. Her personal habit of chronic masturbation leads to her being caught by a group of students. This discovery results in blackmail. Under duress, she is forced to comply with their escalating sexual demands. Her exploitation progresses to include multiple parties within the school, such as the janitor and principal. During the episode's events, she is conditioned into a submissive role for the sexual gratification of others.