Junjou Etching

Haru Kurumiya is an art student who devotes himself to creating images. Kurumiya, who takes his art very seriously, can't help but feel annoyed when he sees other students playing and flirting after having gone to the trouble of attending art school. One day, he accidentally finds a manuscript of erotic manga and discovers that the author is a girl in his class, Nono Uzuki. Kurumiya is confused. He despises erotic manga, thinking that anyone who draws such salacious work can't possibly be a serious artist, but he respects Uzuki as a fellow student who also takes her artwork seriously.

(Source: Natalie, translated)