Yakushiji Teruki is bound by a demon that brings pain to humans. That demon's name is hemorrhoids, which is an illness in his anus. All of a sudden, a girl by the name of Miura confronts him. What does she, the unsociable classmate want from Shiki-kun and his….anus? Find out!
Kiss My Ass is a completed manga by Ohmi Takeshi, first published in 2013. It blends psychological, romance, comedy and medical. You can read all 13 available chapters of Kiss My Ass online for free on MangaPulse; the newest is Chapter 13, added 2018-04-11. The series is finished, so you can read it from start to end in one go.