If one were to ask which of the four seas in the world of One Piece was the weakest in this era, perhaps no one could give an accurate answer. But if one asked which sea was the most chaotic, everyone could give the same answer: the North Blue.
The reason was simple. During the eight hundred years of the World Government's rule, the North Blue was the only sea that had ever truly escaped the World Government's control.
And the ones responsible for all this were the Vinsmoke Family, a name feared throughout the entire North Blue.
About three hundred years ago, the Vinsmoke Family, born in the North Blue, had ruled the sea through overwhelming military force. They had terrified both the Marines and the World Government, becoming a horror story of the North Blue.
Only after the royal families of the North Blue's various kingdoms betrayed them did the Vinsmoke Family's rule completely collapse. Even their territory was stripped away, leaving them as a ghost kingdom drifting across the sea.
As the current head of the Vinsmoke Family, Vinsmoke Judge dreamed of rewriting the family's legend and ruling the North Blue once more.
For that purpose, he devoted himself to science and joined Vegapunk's illegal research group, MADS, where he mastered the power known as the Lineage Factor.
Later, when the World Government discovered MADS's research and recruited Vegapunk, turning him into one of its lackeys, Judge escaped. Using the power of the Lineage Factor, he created a massive army of modified humans, established a vast kingdom on the sea, and revived the Vinsmoke Family.
Even so, Judge still did not dare challenge the World Government.
Because he knew very well that numbers were useless before those true monsters.
If his defeat in Water 7, under the