One Piece: The Strongest Emperor
Archelaus Tigra was hailed as a genius ever since the day he was born. He could write at the age of 1, speak at 15 months old, and solve puzzles which stumped even the smartest of wise men at the age of 4.
As a Prince of the Tigrian Kingdom he was hailed as a once in a century genius, but little did they know that he was a reincarnator from another world.
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I would like to make a few clarifications, I typically don't forget things I've set up, so more often then not if something isn't clear or show at the beginning it will probably come into play a bit later.
Besides that this won't be a perfect depiction of One Piece as that is One Piece, I will try and follow the rules and lore Oda has set up as best as possible, but somethings will be altered or be my interpretation since the rules on certain aspects aren't all that clear. So its an AU in a sense.
Now another point, this won't be following Luffy's Journey or something this is simply a guy who wants to build a Kingdom, an Empire, so he doesn't have some hate boner for Luffy but is simply trudging along.
Rant over sorry about that, I hope you enjoy the story though.
(Also this picture is not mine, but LordValmar did some cool edits on it so thank you LordValmar.)