The Story of an Onee-San Who Wants to Keep a High School Boy. is a completed manga by Hideki. It blends comedy. You can read all 7 available chapters of The Story of an Onee-San Who Wants to Keep a High School Boy. online for free on MangaPulse; the newest is Chapter 6, added 2018-04-08. The series is finished, so you can read it from start to end in one go.