Shirou Oka, a computer science major, takes the same morning commute to campus daily where he spots a high school girl engrossed in reading the latest programming books. Despite his desire to approach her, he has never mustered the courage to do so. However, on his final day at the university, he finally gathers the courage to speak to her. Unfortunately, he ends up accidentally spilling the contents of her book bag onto the platform. In the process of helping her out, Oka inadvertently picks up an object resembling a sex sleeve, which makes the girl uncomfortable, leading her to flee.
After this mortifying experience, Oka chooses to concentrate on his career and lands a job as a system engineer at Peach System Co. Nonetheless, he discovers that it is not confined to programming. To add to his distress, he realizes that the girl he used to see on his morning commute is none other than Momoka Takashima; she is the company's outstanding coder and president, responsible for designing, constructing, and examining sex sleeves. She is frequently hailed as the "Steve Jobs of the sex sleeve industry."
As he embarks on his new employment, Oka must also confront the awkwardness of his past interaction with Momoka, which could compromise her aspirations.