Ch 114 question: Is she really stupid?

So the Money Game has a fatal flaw: Suzui and Karen and Yumeko could really work together to trap Kinu.

The 100 million bets is actually quite an obvious route. And they only have to do it once or twice. They only need one luck to make Yumeko gains 100 million. After that they could play safe again and just using minimum bet when they play with Kinu.

But seriously, how will Kinu handle it? If she's merely using violence to threaten Suzui or Karen to play 100 million too, that would be an easy route for this manga.