Waka is a female student who lives a happy life with her wealthy father. But behind her facade as an honor student, she harbors a masochistic desire to be bullied by men. She spends her days watching videos of women being bullied online, and is tormented by them. One day, her neighbor Kudo sees her masturbating while watching a dirty video, and blackmails her into having sex with him. Since then, she has become Kudo's sex slave, and is trained in dirty acts...