After that, Zebu drove the great serpent into Enkanomiya. He helped a child fulfill a wish and joined that child in overthrowing the rule of the Sunchildren, becoming the god worshipped by Enkanomiya.
Under the great serpent's leadership, Enkanomiya enjoyed true prosperity and peace, and established some ties with Khaenri'ah and Inazuma.
In other words, the Thunder God ruled eastern Inazuma, while the great serpent ruled the west, with neither side interfering in the other's affairs.
The trouble began when the great serpent found the forbidden book, "Before Sun and Moon," in Enkanomiya.
Because of that, the Heavenly Principles sentenced him to death.
Knowing this, the great serpent repeatedly sent people to survey conditions on the surface.
He then paved a path with coral and established Watatsumi Island above the sea, bringing all the humans of Enkanomiya up to the surface.
But there were so many people that Watatsumi Island had far too little room for them to live.
Thus, the great serpent began preparing for a war—the Eastern Invasion.
That was why he still chose the Eastern Invasion despite knowing he could not defeat the Thunder God.
First, his death was already certain.
Second, his people needed more room to live.
And Xiu Yuan's previous incarnation, Sasayuri, had died at the great serpent's hands while trying to stop the Eastern Invasion.
This time, he would never let that tragedy happen again.
After rowing hard all night, Xiu Yuan finally landed on Yashiori Island at sunrise.
This island would suffer the most tragic fate in all of Inazuma.
With its flat terrain and its position between the Thunder God and the great serpent, it would become the main battlefield both in this era and during the era of the Vision Hunt Decree.
But Xiu Yuan would not let history repeat