Foolish little lord, no matter how many years he's lived, he is still just a child mentally. He's gonna have to learn the only way a bratty kid will learn, harsh punishment.
I think that the demon lords, due to their seals, have twisted personalities.
And it spreads to the people who spend a lot of time around them.
Power always comes at a cost, the only question is what the cost is.
I hate that kid. He looked like a PoS from the beginning, his attitude and personality is annoying as fuck, nothing is likeable about him as a character for me.