When the Second Hokage arrives in the world of One Piece and gains the Wood Release he has always dreamed of, a man armed with every forbidden jutsu appears on the seas.
Observation Haki? Sorry, my sensory abilities are second to none!
Armament Haki? Isn't that just chakra coating a weapon?
Conqueror's Haki? It's just an outburst of chakra. When it comes to sheer presence, I bow to no one but my big brother!
Water Release? Sorry, mine is Sea Release. You think I signed a contract with the ocean for nothing?
Flying Thunder God Technique: fast and convenient. Little bro, you can't even react in time!
Impure World Reincarnation: they don't call me the Dream Fulfillment Master for nothing!
Mutually Multiplying Explosive Tags: You think you're the only one who can't die?
Shadow Clone Technique: Picking on me because I'm outnumbered? Then let's do this!
Since I'm here, it's time to make the Senju clan and Konoha great again.
Make Muye good again! (MMGA!)
(If you read my last book, you probably know I'm not good at writing romance or fight scenes. I want to give them a try this time.
Multiple love interests, invincible protagonist. He starts out with the Marines, learning about this world, then goes off to establish a country and a village midway through the story, before the final battle atop the Red Line.)