Nao, a beautiful and kind new teacher, visited the home of Manao, a student who refused to attend school. While trying to talk to him, she was knocked unconscious by Manao's scheme. In her dazed state, Manao revealed his obsessive lust, telling her, "I want to pin you down." Her voluptuous body, unable to move as she wished, was relentlessly licked, leaving her writhing and falling prey to thick cum. Furthermore, she was attacked by Manao's father and brother upon their return, and Nao became the family's sex toy... Impregnated day and night, Nao eventually began to bloom with a twisted masochistic nature...