They were the "original beings" the ones that created all forms of magic, except dragon slayer, god, and devil slayer magic. For those magic belong to them who arrived after the "original beings."
They were a mysterious race. Never interacting with humans finding no reason to do so. The most introverted were the "Celestial beings." They created celestial spirit magic and the zodiacs including the celestial king. The zodiacs were considered their children because they created them, and the zodiacs were completely loyal to their creators. They reigned and prospered away from humans for a long time but the celestial beings were different from the rest. While its true they weren't very active around the human ace they didn't find them displeasing. One of the celestial beings found a little blonde child who was on her last breath and took the child to the rest of the beings. The celestial beings decided to give all their knowledge to the child seeing the child's heart was pure and held no ill intent towards her own race. They poured all their magic into the child binding her soul with celestial magic and their life force as well. The child was reborn that day and was no longer named the one her parents gave her, for she was now Lucy meaning "light" for that was what she was to them, their light. The child's hair grew long to the point where it covered her whole body as if protecting her purity from the impurity of this world; her eyes became gold colored showing wisdom within those young an innocent eyes. The celestial beings knew that this child was to be the one to inherit everything once their time would soon expire, even the celestial spirits crowded the girl wanting to be with her as much as possible for she would be their new mother.
That time soon came when the celestial beings gave the girl the rest of their life force so that she would live in the same way as they did. For all eternity. And so the girl known as Lucy soon grew to the age of seventeen when her body stopped aging making her the last celestial being to walk the earth. The celestial spirits of the zodiac including the celestial spirit king and Ophiuchus the thirteenth gate created by the girl fused with her by asking their keys be destroyed for they did not want to be used by humans, only her. Accepting this, she absorbed all of them gaining their abilities to use as her own whenever she pleases.
Lucy would watch the humans from the celestial realm out of sheer boredom despite once being human herself. Sometimes she would go down there to purchase a book from their many book stores. She had to admit that for humans their books and knowledge of the world around them was quite impressive to say the least. The last celestial being spent her days absorbing herself within a new book everyday to appease her boredom, that and fighting dark mages and monsters whenever she encountered some. Before she knew it many years soon went from centuries.
This is how she soon met them, him, and him.
400 years now
Lucy was reading a book from one of her collections ignoring the dragons that flew above her head. Honestly the only dragons that didn't get on her nerves were Igneel, Atlas Flame, Grandeeney, Metalicana, Skiadrum, and Weisslogia. Closing her book the immortal simply walked away from the area but not before sensing herself being watched by someone who was familiar yet unfamiliar, "Come out child of man."
The bushes rustled for a while before someone finally came out, the boy had black hair, eyes, and was wearing what looked to be a robe of the magic academy.
Lucy sighed, "You again? What do you want?" she looked back at the boy, "Zeref."
Zeref smiled innocently and bowed politely, "I'm sorry, but I wanted to see you again. I enjoyed our talk the last time we met."
"You mean when you stayed even though I told you to leave you annoying brat." Lucy stated.
Zeref laughed, "Your funny, Lucy-nee."