I think you're mistaken. The black haired dude is Claude's brother, Anastacius. The kid that Lucas insulted is Aertenitas. I guess he's the emperor from long time ago and yes, I assumed after being insulted he worked really hard and became the strongest emperor. He's basically insulted upon meeting Lucas the first time, I'd definitely suffer from inferiority complex for the rest of my life after being insulted that harsh tbh
uh I think that's anastacius
there is always a reason, why a character is being remembered. and no one ever said he is the kings bro. he just looks like it. and if i remember correctly, he said he made himself look like that. either he was the kings bro and his soul just reincarnated, he is using his body, or he is still aertenitas and he made himself look like claude. there is a connection between the kings bro and that old king that lucas insulted.....defo...
aha so it is all your fault huh you egocentric idiot lucas! you traumatized a kid and made him into an obsessed guy who wanted to be better than anyone and everyone so that he can proof you wrong one day. and he became that crooked weirdo black dude now because he learned black magic and became the strongest king and kinda managed to not die.....gosh...such petty crap....