Transmigrating Simultaneously: Starting with Jujutsu Sorcery

Yu Ji transmigrated to another world, but so did countless versions of himself, all at the same time. They share memories, pool their talents, and work together, so in theory, they'll eventually become the strongest. But why are all the others in such dire straits?

Jujutsu Kaisen Yu Ji: The strongest in history versus the strongest of today. Am I next in line to fight Sukuna?

Naruto Yu Ji: I'm just an ordinary genin, but the Seven Ninja Swordsmen are hunting me down. Guys, will I survive until the war ends?

The Dragon Raja Yu Ji: My bloodline is weak, and my Words of Power are feeble, but at least Kassel College won't take me in, either.

Warhammer Yu Ji: I just landed, and Chaos is already corrupting my mind. Is there any hope for me?

Jackie Chan Yu Ji: I just got off the plane. What do you mean I have talismans inside me? I'd better ask Uncle how to deal with this.

Marvel Yu Ji, One Piece Yu Ji... Every Yu Ji's start is a mess, and it only gets messier. But it's all right. I'm counting on you, other me.

Yu Ji: "No rush. I'll wait until I've grown stronger, then watch me pull off a few moves."