Plushie/Shiro would have around 200 IQ/Abandoned by her parents, Shiro is an 11-year-old shut-in gamer/described as a genius in logic and problems but has difficulty understanding emotions or behavior, relying on Sora to help her defeat beings with emotions such as Tet in their chess match. She also rarely shows much emotion at all and, despite her genius intellect, speaks in short, terse sentences and in a third-person perspective/Shiro is a master of Chess and has won every chess game