Do you think One Piece is just a manga? I used to think so too.
The sea is a world.
There are monsters, there are humans, there are weaklings, there are you and me.
The sea is a hell.
There are chains, there are demons, there is death, there is hatred.
And I am full of hatred for you!
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.