beta
As you all know, Alvan (2nd prince) is the antagonist of the story. But his reason is stupid, I can't believe it. His actual reason was he is extremely jealous toward shuden. The emperor really value shuden since he was a kid (15yo), and gave him a lot of rewards and treated hum kindly, which made Alvan felt less, because he is a prince, why the emperor value shuden more than him. That's the reason for his rebellion.
In past live, it also the same, after killing Gusto (1st prince), Yeri and Valia. Alvan was immediately killed by Shuden. I mean, bro is stupid. His grandfather repeatedly told him to be friend with Shuden because Shuden has complete control over the army and it will be good if he get Shuden support.
Shuden (15yo) made an oath with emperor using holy artifact, the oath was something about that Shuden power will always protect the empire and will never harm empire. That's why the emperor trust him a lot.
Emperor will feeling a lot disappointment toward Alvan after rebellion. Because the emperor didn't gave his kids less. Since born, they already princes, they have status, money, power and education. Unlike Shuden who get his power and wealth through his own merit. Emperor told Alvan, you already have more than Garth, what it is that you envy him for, with your privilege you should have do better. Or something along the line