Do-M sotsugyô: Sayonara, goshujin-sama

Original title: ドＭ卒業　さよなら、ご主人様

Sakagami Aimi, a serious schoolgirl on the surface, is actually the love slave of a middle-aged man, Kamiyama. She has accepted Kamiyama as her master and is no longer able to live without him, but one day he suddenly breaks up with her...