And assuming that Charisma actually works then the match is a stomp match so FRAing wouldn’t be valid.
Not really, like, even if it work isn't like that would make that she don't want to fight because, again, she like to fight and did lucha even against normal humans that should have been under the effects of her charisma.
And the skill thing with the 3 martial artists really isn’t all that dominating when you consider Suimei attained mastery over the conventional martial arts and sword techniques at an early age and so called martial arts masters get owned by him with near zero difficulty and with his combat skill being enough to read the opponent as accurate AS IF he was actually seeing the future. Add that to his danger sense and instinctive reaction that allows him to dodge things that he can’t even track himself and again, it’s not all that. That + evasive and regenerative magicka.
To be fair in this point, what are called martial artists in Isekai Mahou I'm pretty sure is very differemt that what is called martial artists in Fate, like, servants are the best of the best, beings that left their names in history, in Fate the skill in martial arts can grant you hax so from that point alone I'm sure they are very different, but well, the other talked a bit about scaling chain so to that let me give the extra info that the Martha girl is actually a crazy good combatant to the point that even Kojiro respect her and want badly to have a serious fight with all against her, Aquilles also admire her and he is the dude that fought against a army and Chiron with the heart pierced and his spirit core destroyed.
About read the future as said that's a skill relatively common skill in Fate, Aquilles for example have fought against Chiron various times and Chiron can predict the future so precisely that he knew in Atlantis that the world was doomed thousand of years before the chaldean arrived, in Apocrypha Aquilles killed Chiron and in Atlantis he stalmated him and his army for hours when heavenly injured, there also exist Xiang Yu who is a machine with a analytical power so great that won several wars and that can even precisely recreate the history of a world from just the tiny bits of info gathered in a conversation, said Xiang Yu was defeated thanks to the acquisition of a skilled servant like Red Hare.
So yeah, I don't doubt that Yakagi is a skilled fighter in cqc and can predict the movements of the opponent, but honestly is nowhere near the level of Fate in that regards.
That said since his win con is clear and it's something that in principle is relatively possible I can see him winning, but since Quetz have her pride as luchadora she isn't gonna let him accomplish that easily so I can also see her winning.
Also, while I don't think she would get crazy skills that make the things unfair I could see her gaining a skill like Mana Burst for example to bust her physicals, in other words, I could see her gaining things that support her fighting style instead of some random hax that make her automatically win.