One Piece serialization has left many unsolved mysteries so far
Where do devil fruits come from?
Who made ancient weapons?
Which countries have established world governments?
One of the ancient weapons, the story of Uranus, King of Heaven
A super big idea
Since Neptune is the mermaid Shirahoshi
It's possible that the King of Heaven is also a character!
Moreover, she is a beautiful, cute, smart, eating, and cute girl who can attack cutely (something seems wrong)!