I would suggest Viola, but I hear she isn't all that great. I was going to play that game and pick her up but /effort.
And my main reason for C-Roa? You guys know that above all else in fighting games I like making people not move in the corner once I've established any sort of semblance of oki. Remember when I learned F-Maids? Yeah. It's like that. Only C-Roa doesn't have a bad matchup against people who zone.
Kusanagi literally made me cry from my inability to get in when he was zoning, or get out when I was being pressured.
I had never been more frustrated with a matchup in any game before in my life. Not even Sakura v. Bazett made me feel that helpless. It was bad.