Is it her knees? I think it may have something to do with her body type she has the same body type as Nagaoka and we all know how that turned out. I think that could be figured out once she joins but yeah she's a total mystery whether or not she can transition properly in the NT.
It's a mystery. I've never seen her over-taped up anywhere, or wearing one of those Airi things. She just disappears from the bench for weeks at a time