Marriage was never a topic that Teacher Nano Saikawa had dwelled upon, until her father's acquaintance suggests she meet his son, Souichirou Takamiya, for a potential nuptial interview. After spending the day together, Souichirou professes his love and they engage in intimacy. But when Nano removes his glasses, she discovers that he is not who he claims to be. Shockingly, he is Souji Kuga, one of her pupils who she has been having trouble with. Souji unveils that he had masqueraded as his brother to be with Nano, and feels that their families will sanction their bond. Although his reasoning sounds plausible, Nano knows that a teacher-student relationship is inadmissible. Nevertheless, her body ignites with passion towards Souji and she is faced with a conundrum of trying to curb her yearning or succumbing to her impulses.