Well, since everybody seems to be searching for what Mishas' disability is, I'd like to share my thoughts on this matter.
She is extremely loudmouthed and knows sign language. Also, Muto mentions something about "the volume", which makes me conclude that she was deaf at some point, but got one of those bionic ears implants, due to the fact that she knows sign language (that she must've learned when she found out she was turning deaf) and that she got sent to the school in the first place.
Now, naysayers will probably say something like "But isn't it possible that she doesn't have a disability, or just use a hearing aid?"
Let's say that she got a hearing aid. Then she'd be able to attend a normal school, and not Yamaku. While, if she got a bionic ear implant, a technology that's still on prototype level, she'd require a 24/7 nursing staff like the one at Yamaku.
Also, the reason she's a walking loudspeaker might be because of this prototype technology that still doesn't function properly.
Other opinions on this matter?
