The Best Assassin, Incarnated into a Different World's Aristocrat - Episode 23: Assassins are under battle... not

In one moment, he was walking down the street with his little sister—In the next, he had traveled to the world of One Piece, carrying a system that could extract, record, and fuse genes to cultivate powerful lifeforms.Thus began a leisurely and carefree life in the most chaotic world imaginable.When bored, he’d snatch a bit of heavenly tribute meant for the Celestial Dragons.When curious, he’d raise a few cute kittens and bunnies just for fun.When restless, he’d wander through the territories of the most fearsome powers in the New World.Life is beautiful—so why bother taking anything seriously?

She, the world's chief doctor of the 21st century, the legendary overlord of the medical world, was killed and her soul transmigrated…She, the useless miss of the Windcloud Empire, was ugly, silly, and obsessed! She died in her own sister and fiancé's hands…When she reopened her eyes again, she had the soul of the strong but the body of the weak…When she became her, her fate would be rewritten and a miracle would appear…This was a story of a two-faced person meeting another two-faced person. With pure hearts, they would end up together.

“There is no fairness in this godforsaken world”

- Leo

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With the appearance of the ferocious beasts and hideous monsters, humanity was on the verge of extinction.

As humanity lost its hope, a few otherworldly beings referred to themselves as ‘Gods’ appeared and helped humans in creating new cities from the rumbles.

Before leaving the world, they left a special gift that could help the humans awaken their talents hidden deeply in their bodies as there were still monsters and beasts outside these newly created cities.

With the help of their newly awakened talents, the humans started fighting the monsters and beasts on their own.

That’s the beginning of a new chapter in human history as humans started becoming heroes.

In such a world, a 12-year-old kid was framed for theft and the murder of his adoptive parents by some powerful heroes.

Furthermore, they even planned to kill him and make his body disappear to avoid future trouble.

However, after 10 years, he returned to the city with a different name to take revenge against those so-called powerful heroes while trying to find out the reason behind the death of his adoptive parents.

“I don’t know exactly who you are and why you did that, but I will find out even if I have to kill all the powerful heroes in the city.”

Standing in front of the gates of the Phirie city, Leo muttered to himself with a cold look on his face.

I do not own anything from Marvel or Naruto. I just enjoy both universes.So content warning first, this is a fanfic of hot steaming garbage. I hope you enjoy it. I will most likely put in bad words, fights, gore and maybe some smut. Or maybe I won’t, we will see how this goes. This story is my attempt to write some fanfiction that I won’t hate, which is still up for debate.------------------------------Let us follow the MC as he is pushed into the world of Marvel with his own special super power made up from the world of Naruto. This will be close to the MCU, but let's call it Earth-199999-AU. AU is for the author's universe. MCU, check. X-Men, check. Doom and the fan-4? Double check. Other stuff from comics, also check. From Naruto, eye powers? At some point, so check. Tailed beasts and summons? Nope. Chakra and ninja powers? Check and check.------------------------------At least one chapter will be posted weekly, possibly more if I write enough.This is posted on RoyalRoad, Scribble Hub, Fanfiction and now Webnovel.I also now have a p@treon set up under Pewpewcachoo go check it out if you want.