A small swelling full of desire... A student in my class, Mai Miura, is a modern girl with short black hair, a very slender figure and cute breasts. Although her breasts are small, they are sensitive, and it seems that she is troubled by her inability to control her breast desires. So, under the pretext of "suppressing excessive breast desires", I decided to further develop her adolescent small breasts... A total of five stories featuring the small-breasted titjob of a Hinnu schoolgirl whose innate perversion has been awakened and turned into completely obedient masochistic nipples, the curved body and masochistic nipples of a perverted nipple girl.