User blog comment:Crimson and Darkness/Volume 25 discussion blog/@comment-92.228.192.244-20180412060235/@comment-26709288-20180418234707

I'm pretty sure at this point in the story being a pure blooded devil is starting to lose the power and meaning it once held. I'm sure older devils will still hold onto this system but you have to admit that this system is coming to a end.

In the current era, a human who was reincarnated into a servant, a pawn at that, has become one of the strongest devils in history.

We see how quickly the three factions were able to put aside their fighting so I would be highly suprised if the Underworld didn't drop it's noble pure blooded beliefs.