The journal made Hades realize the secret of the Holy Light Empire.
In truth, he had suspected it for a long time. The journal only confirmed it.
Hades then sent people to follow the map hidden in the journal. Despite a few setbacks, they eventually found the Devil Fruit.
That gave Hades the idea of creating a Devil Fruit.
His main reason was to counter the Human-Human Fruit, Model: Nika.
Both were Mythical Zoans.
But the Nika fruit was different.
Across the seas, Nika was the legendary Sun God who brought hope and light.
He symbolized liberation and the will to be free.
His existence was etched so deeply into people's hearts that even the World Government could not erase him.
The greater the oppression and suffering in this world, the stronger that Devil Fruit would become.
The Superpowers already knew the secret of the Nika fruit.
Why had Joy Boy failed eight hundred years ago? Because too few people across the seas had suffered, and those under oppression had not suffered enough.
Their longing for freedom had not been strong enough, so the power it fed back to the Nika fruit had been too weak.
The Great Kingdom had been founded to bring freedom.
More precisely, its founding had been a clash between a new order and the old order.
A clash between democratic republicanism and a system of nobles and slaves.
The Great Kingdom had brought together many peoples from across the world, along with those who supported their ideals.
It had been governed by a council. There were no nobles and no king.
Everyone was one people, part of the "D" clan.
That was why there were members of "D" among the Giant Tribe: their ancestors had once belonged to the Great Kingdom.
Clearly, the Great Kingdom