1.the beginning of the end?

What if chainsaw man is just the future of jujutsu kaisen, what if curses found a new way grow and stuff, what if the king of curses came back just as raged as he was when he died/fell asleep

The past king comes and wrecks havoc looking for his gem(itadori) will denji and his friends calm him?
Updates will be slow
I'm prioritizing this fic becuase wit seemed to be the most popular