The plump-bodied, enchanting Danei Hisako (played by Naoimi) is married to the considerably older Danei professor (played by Minoru Okouchi), who is unable to fulfill her needs. She can only find fleeting satisfaction through indulgence and fantasies of humiliation. One day, while visiting an SM exhibition, Hisako meets Kobayashi Kazuo (played by Tatsuoki Bessho), a former student of the East Asia University of Fine Arts, who had been mocked by Danei for his edgy and taboo art style. In her panic, Hisako accidentally leaves her scarf behind, and when she goes to retrieve it from Kobayashi’s place, she unexpectedly finds him painting a nude woman. The awkward moment is captured by Kobayashi’s girlfriend, Akira (played by Yuko Asuka), who is hiding nearby. When Danei professor receives the photo, he harshly scolds his wife. Heartbroken, Hisako runs away from home and goes to Kobayashi’s apartment, seeking to unleash her long-repressed wild desires.