Rai 's brother will propably appear in the next flashback. We might get a clue on the identity of the First Elder but do not expect anyone we have seen already as there are plotholes with every candidate that has appeared.

I agree with Aurora dragonslyer. It might be Rai's brother. Actually, i'm about 98% sure. Just look at how lonely and sad Rai always looks..

@0onaakko0 How is Rai 's expression relevant? He has no idea even if his brother was the Elder. Also Rai 's expression is that way because he is dying leaving many people behind and in generall he has other reasons to be sad about. And he does not feel lonely anymore. He has a family. They said so in the Manhwa.

He had that same expression since the beginning. You know, centuries before the students ancestors were born. It's how he became after the fight between him and his brother. It's said that he stays in his mansion without leaving after that tragedy.. So maybe, in a moment of weakness, or because of his love for his brother, he made it look like he had killed his brother..

Yeah but his brother was a Noble supremasist who wanted to get rid of all non-Nobles and make a world only for Nobles. Working with the Union (much less founding it) means opposing all Nobles and giving power to those wanting to destroy his kind. He is either too dumb to understant that his working with the Union would benefit the Nobles only if it fails as the Nobles dying was crucial for a  Union victory or he made a complete 180 and decided to kill everyone he ever cared for in a character derailment of epic proportions. It cannot work and the circumstances required for it to work are very contrived and/or plot-hole inducing.

It doesn't really mean he's opposing the nobles. It's more like, he's carrying out his plan on human destruction secretly. Also, it was not the Unions intentions to make the nobles their targets, right?

It doesn't really mean he's opposing the nobles. It's more like, he's carrying out his plan on human destruction secretly. Also, it was not the Unions intentions to make the nobles their targets, right?

But the werewolves of the Union want to destroy Lukedonia and the humans were with them until Maduke brought in mind the saying "with friends like this" proving that he is less reliable than the enemy. Giving the werewolves modification technology is a dumb move given that they did not succeed steamroling Lukedonia only due to shear incompetence (something he could not have predicted) and the fact that a human like Frankenstein could reach Clan Leader level power with modification should have been a wake up call that such a plan would fail.

I think Lord Raizel is too dutiful (Google Translate; sorry if it's wrong) to let his brother live, which causes his sadness; the most of us will hopefully not enjoy killing our own brothers or sisters...

But yes, the 1st Elder will have to be at least as strong as Frankenstein, but I wouldn't be surprised if he is on Noblesse niveau. 

And anyways: Lord Raizel has to be treated somehow after the current Arc, otherwise there is no logical way he will survive any longer (unfortunetly...). His new technique seems to be draining very much of his vitality. I somehow like the idea that Frankenstein will do something on him. 

@Vermilion OH MY GOD THANK YOU! He said so himself: "Regret... For someone like me, even that feeling is a luxury." Look, I get that it is kind of poetic for the two to fight but it does not work like that. The Union was build with an entirely different goal to Rai 's brother (dare I say opposing one with few exceptions) and for him to lead it would be counter productive at best an plot hole at worst.