Traveling through the world of Naruto, he was reborn as Uchiha Itachi's uncle, and also awakened Dio's substitute "world".

Have you ever seen an Uchiha practicing?

Ghost back, tire shoulder, a face full of wild wood lines.

He tore Susan with his hands, stepped on the tailed beast with his feet, and fought Kaguya in hand-to-hand combat.

I heard that the Thunder Release Ninja Taijutsu of Kumogakure Village is unique in the ninja world? I invented Uchiha's Yin Escape Phantasmal Technique.

I heard that Itachi wanted to exterminate the clan? I went up and slapped my nephew until his teeth were all over the floor.

I heard that Obito is invincible? I punched through the void.

I am the Uchiha God of Muscles.

Smash it - Varudo!

This book is also called: "Saving Uchiha from the Destruction of Konoha"

Su Xiao is a cold-blooded young adult who’s seeking vengeance for the death of his family, yet things ended up badly for him.

As he was taking his last breaths, he heard a voice calling him from dimensions, it was a strange system reaching him, asking him if he wanted to be saved, to be Reincarnated.

He just needed to accept a contract, Su Xiao didn’t have any choice but to do so, but he didn’t know what he signed up for!!

Travelling through worlds, doing extremely dangerous missions, collecting special items, levelling up, and even killing Protagonists…

But Su Xiao wasn’t any ordinary Contractor, Su Xiao was a Hunter!

The MC crosses over to: One Piece, Tokyo Ghoul, Naruto, Fullmetal Alchemist, Attack on Titans… and Author’s Original Worlds…

"I don't care what Thanos' ideals are, and I don't care what the consequences of too many creatures in this universe will be, as long as he doesn't use that damn Infinity Gauntlet to destroy my business!" - Kahn Punt

Once he traveled to the American comic world, Kahn had the golden finger to trade all the worlds.

So far, Boss Kahn's name is not only resounding in America in the Marvel Universe, his influence has spread to all the worlds!

PS: There are many subsequent worlds such as Marvel, Naruto, Harry Potter, One Punch Man, The Boys, Dragon Ball, One Piece, etc.