Female teacher Nozomi was a beautiful, big-breasted and highly popular figure, but she became the target of her students' sexual desires. Without realizing it, she was drawn into a sacred role and gradually fell into becoming a sex slave for all the boys at school. While changing in the locker room, overwhelmed by her own desires, Nozomi began masturbating. Unaware, her act was secretly watched by the students. With this secret remaining undiscovered, her fate continued to spiral deeper.