Signing In Across the Heavens, Starting with Naruto

"Ding! Congratulations, Host, you have obtained an item: [Bloodline Card: Sage Body]."

"Ding! Congratulations, Host, you have obtained an item: [Skill Card: Vector Manipulation (Perfect)]."

"Ding! Congratulations, Host, you have obtained an item: [Bloodline Card: Kryptonian Bloodline (Optimized)]."

"Ding! Congratulations, Host, you have obtained an item: [Chaos Supreme Treasure: Genesis Green Lotus]."

Yunkong accidentally transmigrated into the Naruto world and gained a golden finger that let him sign in across the myriad worlds.

And so began his journey of causing trouble across the myriad worlds!

Naruto world: Uchiha Madara, don't you want to dance? Come on, give us a performance.

Demon Slayer world: Muzan, your face is so pale. You must be calcium-deficient. Come on, let's go get some sun together.

Attack on Titan world: Eren, I heard even your head is free. Can you show me?

Akame ga Kill! world: Esdeath, you might not believe this, but I'm better at playing with ice than you are.

World of Warcraft: Sargeras, hurry up and invade! I'm running low on fel energy reserves and desperately need a demon-powered fel energy battery.

Marvel Universe: Thanos, that Infinity Gauntlet of yours is pretty nice. But compared with the power of Teacher Saitama's punch, it's still just a tiny bit lacking.

I, Unno Yunkong, am invincible!