I have a bit of doubt, I'm thinking A-ko. In speed and strength but I not sure. With speed I think of episode nine in yuyu hakusho, where she runs so fast but it looks like she's not even trying. Then I look at A-ko from the first film, and even though she's fast, it's displayed as comic relief except one when she's trying to lure C-ko away from the school. So genkai appear to be a bit faster to me when comparing that, but A-ko probably wasn't going all out. I not including uncivil wars yet though!😌
Yeah I heard that she was base off of them too! Red is the fire of the sun!