The story centers on a geeky male protagonist who possesses an extensive collection of manga. His classmate, a "gyaru" (gal) named , discovers his hobby and begins frequently visiting his home to read his comics. The two establish a transactional relationship: in exchange for lounging in his room and reading his manga, she allows him to use her body for sexual favors.

The series focuses on a small cast that drives the interpersonal drama:

While the premise begins as a straightforward contractual relationship, the narrative evolves to explore more complex dynamics, including moments of jealousy, social pressure, and the internal conflict of the protagonist as he develops deeper feelings for Kuroda.