Professor Kayama, a socially isolated academic mocked by his students, reaches his breaking point after discovering that humiliating rumors and photos of him are being circulated. Seeking vengeance for the defamation, he uses compromising evidence of his students' illicit behavior to blackmail and sexually dominate those who tormented him, initiating a cruel campaign of punishment.
The physics professor continues his campaign of "educational correction," targeting students he believes defamed him. After assaulting Arisa and breaking Maki's spirit with a potent drug, the professor's web of manipulation expands. When Miki attempts to uncover the truth about her sister's trauma, she falls into a trap, becoming the professor's latest victim as he uses a paralyzing agent to ensure her total submission.