Yumagaya was born in the city of Jaca on Kykoris to Lucifer Eludais Tamasanni, the full-blood heir to the throne of the Tamasanni family, and an unknown woman. At that time, his father had been taken under custody by the male government and was due to be executed while rumors spread about there being a plan to destroy the rest of his family. So, his mother gave her child to a woman that had been visiting the hospital that day, informing her to protect him at any cost. The woman took Yumagaya away that very night and, the next morning, his mother was reported to have disappeared from her hospital room.

So, he was raised by Mrs Elina Retil and Mr Rielnus Retil on the male planet. When he grew to the age of 17, he was sent to attent LaVola's Military Academy for Boys and befriended another boy his age named Helaton. After he graduated, then 21 years old, he was sent on various missions with his friend. But, when he was 25, Helaton was announced MIA and Yumagaya decided to keep himself away from anything social.

When he was 26, they made him a Sergeant and then a Captain of a space vessel at 30. He ran the Avelasin for twenty years. Then a Lieutenant at the time, he added two other vessels to his fleet and decided to work as a police force for the entire Nevantian Alliance. By the age of 80, he had a fleet the size of twenty ships. He was the most well-known man in that entire quadrant along with a few miscellaneous planets.

When he turned 97, a higher officer ordered him and two other ships to descend on Arturis 1 in order to quell a large army there that had been attempting to destroy their capital city. They landed in the sands of the ever-expanding desert there on the planet and fought for six days before they finally won. Though, at a price. 4/5 of the army of 10,000 that had been rebelling were destroyed.

While surveying the damage, Yumagaya mistakenly took a wrong turn on the battlefield and dropped into a pool of blood and water that had gathered in on particular spot.

He'd always been rather edgy around blood, but there was just so much there that he couldn't take it. Unfortunately, he'd swallowed some. His mind snapped.

In less than twenty minutes, the entire fleet of his that were left was destroyed and he disappeared, without a trace. His government blamed it on a Quetzacoatl and pronounced him as being killed in action. Meanwhile, Yumagaya was on a rampage.

For the next two hundred years, he did nothing but destroy. The Elivutian, Croas, Vinuli, Peesi, Nelno, Grel, Ininosel, and Set'ha species on various planets were killed off. The planets of Uis, Beziphai, Nenosi, Verillia, Red7, Nenosia, Res, Kurella, Citosin, Verais, Itlosal, Xennos, and Menochiste were obliterated. Along with that, he also wiped out everything in nearly twenty complete solar systems.

People from different planets believed that the end of time was approaching. To Yumagaya, it was.

His mother had been one of the very first humans made by the Creators of his half of the universe. Her parents corrupted themselves. So, to keep her safe, they locked her away in their heavens. After some time, the Creators became weary and they gave her a purpose. Every few millenia, she would be sent down to one planet in order to have a child that would become their physical vessel later in life and allow them to rule the universe again with a renewed power. But, Yumagaya was different.

The two main Creators, Nevel and Ardos, didn't wish for vessels. They were to replace themselves completely with a new Creator. But, Extelsie, Creator of Existence, would not have it. He refused the vessel he was given and forced himself into Yumagaya's mind. A mind more perfect than his own. Instantly, he went crazy, only to be let out when he found an opening.

Yumagaya, being full Quenishondai, could not ingest blood without losing himself in a fit of blood lust. So, once that blood was swallowed, Extelsie forced his way to the surface and began his plan to cleanse the universe with the army of Asun-Rel. An army of indestructable undead. The souls of ever creature he'd destroyed.

Once the last system was destroyed, Yumagaya made his way back to Sorani, his home planet. He found the city of Junsion and wiped out every living creature in it before forcing his way into the Asun temple beneath it.

Halfway through his ritual, though, Yumagaya managed to pull himself out of his long slumber, for Extelsie hadn't ingested blood in nearly two days and his control was weakening.

Time had passed so quickly for him that he had no idea of when it was. Within hours, he was out of the city, confused by its sudden emptiness, and got the date from another town nearby him.

Two hundred years had gone by, and he didn't remember a moment of it. Not a single second. So, for years afterward, he spent his time going though tome upon tome, attempting to figure out what he'd done. His conscience was nagging. Whatever it was, it hadn't been good.

When he was 457, he was challenged by the Guardian of Chaos on his planet and won. His power had grown to unsurpassable heights, but even he didn't know that. For millenia afterward, he searched, becoming more and more depressed with ever horrid legend of him.

"Travel forth, the Ivory Demon

Creeps into your pretty head

Forcing out all innocence

Never leave until you're dead

Like a plague, he strikes upon you

world and world, town and town

Blazing with angelic beauty

Hoping just to strike you down"

After going through nearly one hundred books, he took all he owned to a large island on Sorani that had been deserted. There, he built a castle, brick by black brick with his own hands, his sanity fleeting after only two years of work. He builty rooms and levels that even he couldn't remember. Once it was done, fifty years had passed and he set out on a search. He brought one hundred people back with him, no more no less, to keep watch over the grounds. Then, he shut himself away.

Soon, he wanted more to his life. He wanted a purpose other than to cause pain and to suffer. Through his government, he was paired with the Guardian of Lightning on Kykoris, Jolena. They had a child named Shaina, who stayed with her mother. A few years later, they wished for another child, so were paired together one again and conceived a child named Aeric, who remained with Yumagaya.

Though, despite how separate the genders on each planet were, he found himself falling in love with her. To the point where he could think of nothing but Jolena each day. After she'd become pregnant with their third child, Sarie, he professed his love to her. But, she refused him, afraid that the governments would think them working together to bring them down.

Broken, he shut himself away again, only speaking to his son and his two daughters whenever they would visit him.

And that's where he remains. Enclosed in his castle. Content with knowing that he cannot hurt or be hurt as long as he doesn't touch another being ever again.