The most evil bloodline in the world is not Ace, the posthumous son of the Pirate King, nor Luffy, the son of the leader of the Revolutionary Army, Drago.
After all, to the navy, although the posthumous son of the Pirate King and the son of Drago are terrifying, they are just two brats. Although it is dangerous, it does not make them feel in danger.
It is the four emperors who divide the world equally in the new world, but they are not the masters of the new world. Although, they are nominally.
Because the most dangerous and influential sea area in the New World is not in their hands.
There is a revolutionary army that is comparable to the World Government. Although Dorag gives people in the New World an unusual headache, the pirate group that is really active in the World Government is the one that truly makes people panic.
And the owner of that ship is "Ling"