Captain Houou is a decorated orb craft pilot, formerly a mech jock with extensive combat experience.
Seven things that Orb craft can do that set them apart from the current military paradigm of power armor companies, platoons of mecha, skeletrons, robots, drones, and the rest.
AKA How to Ruin an Anime Series in Seven Steps
The ancient prophet Oijas Bek uttered a cryptic prediction:
In the time of the Floating Ships,
In the Capitol of the Shattered Empire,
The False God will draw the people to his banner,
The Blasphemer shall don robes of righteousness.
No one is sure what he meant, but the various sects each have their theories, which they often fight over.