so like in my time rping there have been three general AUs that have popped up, which i will be adding to the au page but will say here first!! they're the result of certain RPs with people that kind of extend and change the course of ec history in said stories, and are still referred to today so - without further adeu, here's the three main rp aus i'm involved in!
598 AU
This is the oldest AU I have to date. It started about four-five years ago with allenavadonia on the web client Mibbit(I RPed there before coming to tumblr). In this AU, Allen's soul finds Elluka before he's sent to the yards, and Elluka 'revives' him by giving him a body like Gumillia's. Allen becomes her apprentice, changing his name to Ren Springuser (later, Audric d'Anton(?) during Hanne's era) at Elluka's request. His features change a bit too(he looks more of an adult when he's 'reborn' and stuff), and he slowly starts learning magic. Around the mid 500s, maybe about 560, Elluka and Ren develop a relationship(they're kinda like red oni blue oni to each other, and several other forms of that which makes them a good couple). After that, they still stay together.... We haven't fully discussed what happens in Hanne era after Levia awakens yet.
Ministry of Science AU
This is the AU I have with inter-dimensional-traveller about Elluka and Bowen Chuuno. The most general thing about the AU, and what started it, is a smaller AU where everyone in EC had phones regardless of the time period. After a misplaced text, Elluka met and befriended a reincarnated god who can travel worlds. After a while, though, he's drafted into an army and becomes MIA. Elluka was then personally asked by the leader of the Ministry of Science to go to the world Bowen was fighting at and find him. She did so under disguise and camouflage, accidentally hearing a confession from Bowen. Elluka was given an IDND, a device that would allow her to travel between worlds, for saving Bowen. She was also given regular money, totaling to $5,000. Now, Elluka's trying to figure out how to deal with Bowen's love for her while also dealing with all the events that happen in the mid to late months of EC 500.
Arcadia AU
Done with ishiraialostpeople. This AU, I think, changes things more vastly than the 598 or MoS AUs. After pulling Eve's body into her own, an awoken Levia was teleported to a different world. While getting used to her new memories and powers, she decided to help the inhabitants defeat the evil god that was trying to destroy the world. Given the time to hone her skills without fear of repercussion, as well as experience from saving Arcadia, Elluka was able to return and beat Irina in the Battle of Marigold, destroying the cat and BLACK BOX type S. She also saved Germaine Avadonia, using a magic item from the Dread Queen Ereshkigal to keep her from aging rapidly and dying. With Germaine and Gumillia, Elluka took the vessels of Sin and sealed the demons in the ark. Because Gumillia already knew she had awakened as Levia, and decided not to do anything, Elluka also made 'blank' copies of the demons to host the vessels in order to continue using their power. With [sin] gone and, as Levia and Behemo get their own bodies, Malice defeated... The twins plans to go to Arcadia and spend the remainder of her time there. Levia has taught Gumillia how to take her place as Master of the Hellish Yard, and Behemo currently is teaching Germaine to take his place as Master of the Grave Yard.
so yeah these are aus i have that i generally use with the people mentioned, and have significant enough change that I feel they should be mentioned. also, because there may be an ask for one of the aus and it'll confuse people if i reply as the au version and not the normal version