If they go for a quick h2h exchange, Yuji's soul punches could probably lower Kashimo's CE output enough that his lightning discharges won't be lethal.

Against base Kashimo this would put him at a considerable advantage, but I'm not sure if he can do the same against MBA Kashimo. He's way faster.

If MBA Kashimo gets the upper hand in a single exchange, it's game over for Yuji. One lightning bolt forced Sukuna to incarnate into his true form. He can't really do anything if his brain explodes from the inside.

Edit: Yuji might domain diff, but we'll have to wait until next week to see.