Wild

Reginald gritted his teeth as heard Arthur's question. Even though he showed him the difference between their statuses and their mana, Arthur still asked the same question. This child was looking down on him too much.

'Hmph, as expected he's nothing more than an ignorant commoner's child. Usually, there's no use talking to someone as dumb as this. Still, as the perfect noble, I need to explain to him what's about to happen. Yes, it is the duty of the higher class to teach those below them.' 

"Brat, I will give you one chance. You should be surrendering to me. If you leave the false king's side and join me, I promise you a bright future. I will save you from being a commoner and take you in as my son. If you become this great Duke's son you will become a noble, not only that but you will be trained by none other than me. Once I'm done training you, then nothing will be able to stop you, and you will become the strongest person in existence."