Four years into marriage, Asuka's sex life has gradually diminished. Her husband comes home exhausted from work and falls asleep immediately, leaving her to give him daily blowjobs until he ejaculates. Longing for intercourse but never receiving it, her sexual frustration continues to build. Every part of her body has become hypersensitive, as if her entire being has turned into one erogenous zone. She rubs her clit against the edge of shelves for masturbation and enjoys clitoral vacuum stimulation using a vacuum cleaner. Desperate for a cock, her craving becomes unbearable. One day, her husband's subordinate catches her masturbating and ends up assaulting her. After so long, finally feeling a cock inside her, Asuka loses control, wildly repeating intercourse over and over again.