Ahaha! 😅 Lots of thinking, research, and replaying the games went into this. I really want to explain Lya's dad the best I can, but before I do, here is a small disclaimer. It is all fictional and I definitely don't want to offend anyone who is religious. This is just my personal Obey Me canon!

With that out of the way, let's talk about Lya's father. Aionel is the God of the void. The Obey Me universe tends to leave gaps and plot holes, and my intention was to fill those holes a bit while expanding my own universe. For example, the game never actually tells us who or what created the realms (as far as I know!) We are only told that someone named "Father" rules the Celestial Realm and created the angels, while the Demon King lineage rules the Devildom and all demons. There is no mention of a Human realm ruler, and beyond that, nothing is said about how these realms came to exist.

I also want to add that we know MC is powerful enough to bring down entire realms because their power is just that massive and uncontrollable without Lucifer's ring of light. To me (it's my humble opinion) it sounded a bit silly that the only reason for this was MC having angel blood and being human. Those two things became the foundation I used to create the God Aionel. Part of his lore is that he is the one who created all three realms. He created the Celestial Realm, then created "Father" to rule over it. Father then created the angels and built what the Celestial Realm is today. At the same time, Aionel made the Devildom and the very first Demon King to rule it. As for the Human realm, Aionel did not make a ruler for it because he created it directly in the "realm" he resided in, which is outer space. He would watch over the humans himself...and slowly become intrigued by the tiny lives that lived on his small, floating rock.

So to establish the timeline, the Celestial Realm and the Devildom came into existence (through Aionel) at the exact same time, along with their respective rulers. Then, later on, the Human world was made by Aionel right inside his own realm. They are all completely separate realms.

To break down his names:
"Aionel" means God of the Eternal Emptiness, which is his true divine name.

"Vaelrian" means King of the Void Veil, which is the name he gave himself to hide his true identity from humans.

Now I'll explain Sara a little bit! ☺️

For Sara, I had to think a lot. I kept asking myself questions like "Why would a God assume a human form for a mortal woman?" and "What would it look like for that to happen?" 😭 I was spiraling! But then I remembered Sara is Lilith's descendant. But then again, so is everyone that came before her. I had to make Sara special because I couldn't have a whole lineage of overpowered people across their bloodline. Sara had to stand out. Because of that, I decided that this special power and purity skipped all generations before Sara, only to show up like a bright beacon in Sara herself (and later on in Lya) I'm still working out their full lore, so bear with me! 😭 We don't need a specific reason! Sara was just built different. 🤣

Her soul wasn't just sparkling like Solomon's soul did, it was a whole light beam! Just imagine this tiny laser beam shining so far and so bright out of the earth that it shot right into Aionel's gigantic eye. 😭🙏🤣

In a world full of normal, mortal human, she stuck out like a VERY obvious green thumb.

Her soul only got more striking as she grew to became a woman. That unique radiance, coupled with how incredibly beautiful she was, is what caught the god's attention. On top of that, Aionel was a lonely god who had spent his entire existence by himself. He made realms and created rulers to govern them, and those rulers were never lonely because they made subjects, families, and hierarchies. Aionel did not make any subjects to reside with him in the void, and he didn't create a hierarchy. He only remained there watching over the human realm, and they didn't even know of his existence. He never actually desired to assume a human form and visit the realm he created yet loved from a distance, until he noticed Sara's soul one day. That moment was the catalyst that ultimately led to Lya being born.

Ahaha, this is so long! Sorry! 😭 I was also using your question to brainstorm further. None of this is actually set in stone honestly. It might change or it might not but for now this is what I have. 🫶

Also yes, Lucifer does meet them, though I haven't thought about what their first encounter would have been because I've been so focused on their main lore. 😮‍💨 But Lya's dad is extremely protective of her and I can tell you that initially, he DID NOT like Lucifer. It isn't that Lucifer wasn't trying to be likeable to him. It's that no one is good enough for his baby. He also called Lucifer a "puffed-up feather duster" once (referring to his wings when he takes his demon form) 😭

They were at odds for a while...poor Lucifer tried really hard to earn his favor while his ego suffered tremendously. He handled it though. For Lya. She would play mediator all day though. 🤣

Lucifer does eventually earn his respect, however, and becomes someone that Lya's dad values deeply.

Here are some fun facts to add:

❖ Vaelrian is the name he took while living in the human world.

❖ He could not stay in the human world for very long as a human. It wasn't that he was incapable of doing it, but rather that the human world was not made to contain a massive god. If he stayed for more than one month out of twelve months, the earth would implode. Even so, he still tried to be the best, most present daddy he could be, even after every eleven months apart. 🥺 😭💔

❖ After all of the events in the Devildom far in the distant future, Vaelrian and Sara move into the Devildom to be with Lya. Vaelrian is able to stay in this realm indefinitely because the Devildom was obviously made to contain powerful supernatural entities, so it won't get sucked into a random wormhole of existential confusion.

❖ When Aionel permanently abandoned the void to move into the Devildom, the Celestial Realm’s “Father” completely ceased all communications and political pressure against the demon realm. Knowing that his own ultimate creator now resides in the realm, the Celestial ruler treats the Devildom with a silent, careful respect to avoid drawing Aionel’s ire. Lya and Aionel’s existence in this place alone has created an anchor for peace between all worlds. Diavolo's dream of unity finally came true.

❖ Lya did not know her father's real identity until she was an adult, though I haven't decided exactly how that happens yet. She grew up thinking her daddy was just a pretty man who knew how to paint beautiful art pieces and went away for work eleven months out of the year. Poor thing! She is such a total daddy's girl though.

❖ Vaelrian's human eyes are electric blue, and he stands at about 6 feet 7 inches in height.

❖ Lya's massive power comes from having a mix of angel, human, and god blood. This incredible family tree becomes even more miraculous when Lucifer and Lya have their son, Lucien. Lucien is literally Diavolo's dream come true because he carries human, angel, god, and demon blood. He is the physical unity of all realms and all beings, and he just might grow up to be even more powerful than his parents.

❖ While the human world doesn't know for sure who or what created it, the celestial realm and the Devildom have books on Aionel locked away where no normal being can reach. These books were written by their respective rulers, Father and the original Demon King, acknowledging the one who created them. Considering that, Lord Diavolo absolutely knew who the God Aionel was. What he did NOT know was that his little exchange student was that god's blood daughter. He had an absolute heyday when he finally found out! 🤣

❖ Lastly, the knowledge of Aionel does of course eventually spread across the two realms. It was a hard pill to swallow for all angels, demons and everything in between. But Aionel firmly exclaimed that he did not come to the Devildom to rule or destroy. He came so he could finally live with his family (since he couldn't in the human world.)

He's just a big fluffy god teddy bear. 😭🧸 So cuteeeee.

❖ Because Michael and the high archangels are completely terrified of upsetting the origin of all things, the Celestial Realm routinely sends lavish peace offerings and rare celestial artifacts to Aionel's mansion in the Devildom. Completely unbothered by their panic, he ignores the political meaning behind the gifts and casually uses these priceless, sacred relics as expensive paperweights or doorstops around the house, which deeply amuses Lucifer whenever he visits them. Something about it just...comforts Lucifer's ego. 💙

Thaaaats about all I have right now. I've been writing for a while. 🩷🩷🩷

Thank you so much for your ask, Mika!! ♥️💛