Lore Basically in thin this universe the minecraft avatars in aphmaus videos a separate being for there real life actors and one day the real life aphmau wants to make even more money by posting a video every day. so she uses minecraft commands to make her head appear in the world and meets up with ein and offers him a deal if he becomes her servant she will give him god like powers. But he thinks for a moment and ask "What about the rest of the my friends..." she then responds "Since when did they ever care about you think about it you try your best to be there friend but the constantly put you down blame you for everything you are a villain to them why would you care?"

So he accepts the deal and then becomes her servant and this changes his body into what you see now the reason part of his face is the way it is is because of when he made the deal some of his power can't be contained in his new body so it came out and made his face look like that.

And so after making the deal the world falls into chaos and the gang is forced to constantly make content after content the videos you see on the aphmau channel now and one day the other aphmau not the real world trys to get through to Ein and see if they can just let this end but it will all be in vain.