This story borrows some self-created lore that I've made in other stories. It is like a retelling of the same legend I've maintained in my mind's eye concerning the existence of the legendaries and the boundary between human and Pokémon.
I hope you enjoy and follow so that you can continue to read more into Arceus' journey into the mortal realm.
Arc I, The Plate of Space
Prologue
The Creation of the Name Arceus
The Alterstone didn't make me immortal — it made me human.
It had made me play the role of both man and woman and whatever lied on the spectrum in between. It had made me an adventurer, a liar, a friend, an enemy, a dreamer, and believer. I had seen the stars and galaxies from the perspective of a person on earth, as miniscule and unimportant to the universe as every other person. I had seen hurt and betrayal, and I had forgotten myself to the throes and wonders of love.
It had made me worth something.
Long before...
The legends told of my one thousand arms, that I had created the universe and the worlds inside, all in a moment of a moment.
First, there was chaos. Then everything began to spin and spin. There was sea foam and white mountains, shuddering volcanoes and quiet forests. I gave this place time and space, and something else forgotten. Someone remembers, but not me. Then I left the beautiful place called Earth alone, yielding to sleep.
Then, curious enough, the humans came.
It took a few hundred years for one of my eyes to open. Another hundred passed before I knew what I was seeing. They were loud and unforgiving and so intelligent. One day, I had leaned over the precipice of my all-seeing prison, melting into the space verging between the physical and the imaginary. Why were these silly creations fighting amongst each other? Could they not see that I had provided them enough space for everyone, a desert for some and plains for others? All they needed to thrive was the ground and the water.
And so they continued.
Pokémon were born from eggs, like I had been during a tumultuous rage. They were simple animals, entirely innocent, thankfully, because they were also powerful. I loved the Pokémon with all my infinite heart. I wished upon them prosperity and a good relationship with the human beings.
And so they continued.
But something different happened one day. I would never forget this: A human being, small and spindly, had found its way into my reality and told me the opposite of Truth.
"You're a Pokémon," he said. "I knew it, I knew I'd find you!"
"I am no Pokémon, no more than I am human," I rumbled. "I am the Original One."
The human smiled. "I definitely see a Pokémon."
My physical form churned and morphed, and I stood before him. "I am no Pokémon," I restated. I had been too busy contemplating how I would remove him from my dimension.
His smile faded. "Now I see a person."
"I am no mere person!" I said, thoroughly chapped. "I am the Original One!"
He gently touched a circular device around his waist. The humans had created those, the Pokéballs, and used them to capture my Pokémon. Why would my two creations never stand on the grounds of equality?
"Well," he said, "I guess we'll have to see."
Then he threw the device at me. For a moment, I was as helpless as an infant, tumbling around in a chaos that was, for the first time, bigger than me. It was as if I had been subjected to my own universe, except I was not in control, and I had no vision of the beginning or the end. Then, with a resounding noise, I escaped from the device, and stumbled out of it, sputtering and insulted.
"How dare you?" I demanded the human being.
He soon fled and went back to his world. Then he told the legends that I was an entity above gods, the Original One, and then they deemed me Arceus.
"You humans have spent millennia uncovering the legends around me," I said, gripping the barrel of the gun tighter. The steel was cold on my palms. "Since the dawn of your existence, you searched for the secrets behind my name, trying with all your might to reveal who I could be. You discovered what mysteries were hidden in my legends—"
I felt his repugnant fingers touch my wrist, reaching for the Alterstone. The gold band was slipping from my arm. Time slowed down. As my most beloved treasure slid from my wrist to my palm to my fingers, I cried. But I never looked away. Not once.
"—but never what was in my heart."
At the exact moment the Alterstone was removed from my hand, I heard the thunder of the bullet between my eyes.
End of Prologue
A/N: I promise to make this adventure as enjoyable as possible!