The people of the Kronos Kingdom called these buildings "Jade Towers."
They were called jade only because their surfaces were jade green.
Each covered twenty-seven square kilometers. They were not as tall as the Sky Arena, standing only a little over four hundred meters high.
Yet each had nearly forty floors, averaging one floor every ten meters.
Unlike the pyramid-shaped Sky Arena, the Jade Towers were massive cylindrical buildings, much like the Royal Military Academy's arena tower.
From outside, wheat averaging six or seven meters tall could be seen growing on every floor of a Jade Tower.
The kernels were distinct, each nearly the size of a little finger.
Wheat this productive was rare across the seas.
The wheat and rice commonly found across the seas were fairly ordinary. Some places simply had such favorable conditions that farmers could harvest them four or even five times a year.
There was no denying the seas' wealth of resources. The soil was exceptionally fertile, giving major grain-producing nations the confidence to dominate their regions through their food supplies.
Together, those nations had formed the Grain Alliance. They could even manipulate grain prices across the seas, and not even the World Government dared offend them lightly.
But that was in the past.
Nearly two hundred years ago, the World Government had dealt the Grain Alliance a severe blow.
Pirate invasions, natural disasters, civil strife within kingdoms—it had used every means available.
Now, as the status of Affiliated Nations rose, the Grain Alliance seemed poised to reemerge in the Four Seas.
With the Red Line in turmoil, the World Government had abandoned many civilians and established the Quarantine Net. Even so, it needed to spend nearly a hundred billion Beli on grain every year.
Those grain-producing nations had large populations and powerful economies. In