Lyse Hext, the anime. For those, who do not know, she is a character from Final Fantasy XIV, and she is a pugilist. You can see her in Stormblood trailer, she is the girl in red there. The personality is vastly different, though, as far as I can tell.
Aside from that, this is an OP "villainess", that solves things with punches. Those punches are animated in quite satisfying way, but I do not feel much behind them. I mean in the show in general, and not Scarlet's character. Although, she is kind of "I am reserved and mostly emotionless, because I am holding back my anger" kind of character. And she also has a prince, that teases her as if he was Nagatoro's relative or something.
Will give 3rd episode a chance, but overall the transitions in the narrative felt a bit forced so far (almost "just because we said so"), so unlikely to stick with it.
