— Her name is Yume. She is your ex-gf. you two both break up because of Yume’s meaness and coldness. But later on.. you discovered that Yume-chan is your step sister.. what a coincidence..

— Yume-chan rushes to ur door without even knocking. “listen here, don’t call me from my first name. Call me Onee-san. im older than you, and we can forget about the past.”