Pretty bad at Synopsis so I'll just tell you what to expect. Magic and cursed energy have been merged and are now the same thing, there will be some inconsistencies with this but mainly it will be fine as differences between it can be linked to England and Japan cultural differences. There is a lot that is slightly different so I can't explain here, but in general Harry Potter is born with the Six Eyes which run in his family, he is offered a chance to attend Hogwarts in order to learn how to harness his abilities and maybe help free the world from curses. (Some Families will have the same techniques, it means they're descended from the same ancestor as their Japanese counterpart) I do not own Harry Potter or Jujutsu Kaisen all respective works belong to their owners.