Simultaneous Transmigration: Awakening the Mangekyo Sharingan from the Start

Thanks for asking. I'm in a 99-style multiverse setup, and I don't hesitate to kill.

Du Yang was reincarnated into the world of Naruto from birth. The night of the clan massacre was fast approaching, yet he was powerless to stop it.

Just as despair set in, he entered a mysterious realm and discovered that he had transmigrated into multiple worlds at once. His cheat was none other than himself: talents, skills, abilities... everything could be shared, without any restrictions.

Du Yang from the main world of Shrouding the Heavens: "Brothers, I cultivate the Heaven-Devouring Demonic Art. Share all your origins with me so I can attain a Chaos Physique."

Uchiha Du Yang from Naruto: "Brothers, let's cut the chatter. I'm handing out Mangekyo Sharingan wholesale right from the start-a pair for everyone. Enough said. Let's make the Uchiha great again!"

Du Yang from The Outcast: "I'm giving you the Threefold Reverse Rebirth right from the start. I'll show you what it means to stand at the very pinnacle of the outcast world-and give the old Heavenly Master some real competition."

Du Yang from One Piece: "Haki is everything. I'm sharing advanced Haki coating right from the start."

Du Yang from Marvel: "I've shared my Level Five mutant powers, too. And that's not all-I can learn the abilities of everyone in the Marvel universe."

Du Yang from Dragon Raja: "I cut down Odin right at the start. Dragon Kings exist to be cut down."

Du Yang from Jujutsu Kaisen: "What was that, Gojo Satoru? Who's the strongest now?"

What Du Yang never expected was that their very first exchange would put them at the pinnacle of their respective worlds.

One Du Yang might fall short. But all the Du Yangs together? They are the absolute peak-invincible.