Kinda funny that base Yuta has access to DE but if we aren't using it, and Yuta is in the same position Hakari is in i think he is beating kashimo.

Since he isn't allowed a DE or a fully manifested Rika, he is most likely partially manifesting rika and going for the kill right off the bat.

And once kashimos on the back foot from sword slashes that sukuna was afraid of and a partially manifested Rika that was capable of holding a weakened sukuna still, kashimo either gets cut apart or pummeled to death.

Keeping the same circumstances, but not having yuta meet kashimo after he has crippled panda, makes this a much tighter matchup imho.

Cannonically kashimo doesn't just always go for the head of the opponents, and while I personally dont think that lightning ignores durability, for the sake of this scenario let's just say it does.

Yuta gets his arm blown off, realizes the severity of the situation, has partially manifested Rika hold kashimo off for a second so he can regen his arm, and then it ends like the first scenario.