I suspect her ability isn't so convenient. The moment she has her ability start the game, the conclusion of the game is enforced even if she's the one who loses. She can't choose to invalid the game or something like that later.
Else it's practically invincible, and also nobody would even bother to challenge her no matter how desperate or confident they were.
As for how she knew he was cheating, I think she's just used to everyone cheating on her. Of course they would cheat, she's in with a bad crowd and her ability can be enforced even on herself. It's why she plays only card games, as stated before. It doesn't matter how her opponents cheat, she'll always win with her lackeys abilities being these. The reaction MC has in the first game is all she needs to know he's cheating too.
Doubtless she's never had to care about how her opponents cheat before, it simply doesn't matter. She probably has to start thinking real damn fast now though. Remember that it was said that everyone hides their ability.
Yeah the resolution is kinda forced, the right and left swap ability only works if the opponent has a way to see your cards, how could she expect him to do that in the first place ?But anyway it’s correction time, we all here for that isn’t it ?
Thanks for the translation
That's why shes cheating in more than one way. If her opponent isn't cheating it's already enough that she can peek their cards. If they are cheating, then the guy's inversion perception ability ensures it's still not a level playing field. She probably has him use the ability regardless of opponent without caring if they're really cheating or not, it doesn't matter. All this makes sense given she only accepts card games.
