It's been a while so I reread the entire thing, and I have to ask some questions
1 - These Wizarc Empire insurrectionists are going against their nation's core beliefs, Emperor Wizarc lost fair and square to the king, and accepted the defeat with honor. They are actively shitting on the old emperor's grave by doing this.
2 - The insurrectionist army, is it just the Eastern corps that are under the Wizarc banner, or did they have sleeper agents in the other corps?
3 - Where did Julius go, he'd actively crush the Wizarc commanders and the princess for getting in the way of his battle lust.
4 - If MC punches the king, would he be able to learn the Hero's Strike, or would he get a dragon?