After causing an accident at her previous hospital and resigning to take responsibility, Nishina Momoka transfers to a new medical facility. However, she reunites with a patient—the "I" in the story—who knows about the incident, and gradually falls under his control, being trained to obey his lewd and humiliating commands. In this hardcore installment of Fitch's acclaimed "My Pet" series, the stunningly busty Momoka transforms into a depraved female dog, her body betraying her as she becomes soaked with arousal despite her inner disgust and desperate expressions of pleading. The film masterfully captures her inner turmoil and the conflicting state in which her body responds against her will.