Stop reading, I can't write anymore, I'm giving up.
No System+Villain Hero+Struggle for Hegemony
Bizarre devil fruits,
All kinds of races blooming,
Unparalleled advanced technology.
Fate made him selfish and evil,
He is cruel, smart, charming,
But definitely not a good person.
Death is not his end, fate has arranged everything for him.
Start a new life in the familiar world of pirates,
Start from an empty island and conquer the whole world step by step.
Note: There are very few settings that may not be consistent with the comics. If you have any comments or suggestions, you can discuss them.
I don't understand most of the places