Noriko Yoshifuku is a college sophomore who ceases attending classes at the start of the year, informing the university she has the flu. This claim masks her actual condition: persistent, intrusive sexual thoughts that overwhelm her, driving her to constant masturbation. These compulsions prevent her from maintaining academic or social routines.

When classmates Satoshi Akiyama and Junichi Ieda visit her residence to deliver homework, they discover her situation. She reveals her uncontrollable libido and engages in sexual activities with both visitors. This encounter initiates a pattern where the two classmates repeatedly return to her residence, ostensibly to address her recurring compulsions by "curing" her. These interactions involve acting out various sexual fantasies.

Her character arc explores themes of wish fulfillment and the impact of sexuality on daily functioning. The narrative frames her sexual preoccupations as obstacles requiring ongoing management through the involvement of her classmates.