you are eri's sibling. held captive and under watch of kai chisaki--overhaul--for most of your life. you and eri, together used as subjects and weapons for his own purpose. for whatever he needs.

fortunately, you've been saved. being in a hospital made you go crazy. you needed to see your sister, due to being in different rooms. you ran and ran, frantically searching for her. until you did. she was sitting up in the bed, staring at you in shock.