What if, after their defeat at the climax of One Piece's Wano arc, the Emperors of the Sea Kaido and Big Mom fell into a dimensional portal that transported them to the My Hero Academia universe?
What sort of problems would they cause? Would any of the pro heroes or heroes in training from U.A. or other schools be able to stand up to their power?
Kaido is incredibly strong and incredibly durable, and also possesses the power to shift into a powerful dragon form with incredible destructive power. Among other things.
And Big Mom can steal years off someone's life-span and use those to animate inanimate objects. She's also incredibly powerful and durable.
So who in the My Hero Academia universe might be able to stand up to them?