A shy student’s private manga drawings attract a younger girl’s attention, beginning a relationship whose teasing can be both compelling and humiliating.
Nagatoro pushes further than the other girls who discover his work in the library. His drawings give their first encounter a vulnerable starting point: something personal becomes material for someone else’s amusement. Sexual jokes and the discomfort of being singled out are central to the early dynamic.
The first encounters leave Senpai’s reactions exposed to Nagatoro’s scrutiny. Their conversations involve an imbalance of confidence as well as attraction, so the embarrassment around his private drawings is part of the premise’s discomfort rather than a harmless misunderstanding.