Disclaimer: I do not own Pokemon.

Prologue: The Original One.

The history of creation was one of the oldest secrets of the Pokemon world. More often than not, ancient beings, man and Pokemon alike wondered if there was anything more to their existence in a seemingly endless universe. They tried their best to make sense of the world around them and was rewarded for their efforts with the discovery of legendary Pokemon, creatures with such great powers that they defied all rules and logic of the world that ordinary creatures were bound to.

But what about these legendary Pokemon? Where did they come from? As some questions were answered, more sprang up in it's wake. Human efforts that lasted more than a millenium found the answer to this question in the Sinnoh region as they came across the realm of The Original One, a creature of such immense power that it couldn't even enter their world as a whole without threatening it's collapse. This creature was named Arceus, The Alpha Pokemon and this is a story about him.

Like many other universes in the infinitely large web of parallel yet interlinked multiverses, Arceus's universe had its origin in an infinitely vast yet at the same time, impossibly small void. This seemingly eternal void of Chaos where the concept of time and space didn't exist, was the birthplace of the Original One. He upon his birth received the entirety of the void's powers and soon created what was then a baby universe.

The newborn universe took a shape of it's own as its creator mastered his powers over the course of billions of years. The particles of matter that was formed by the Alpha soon joined together to form atoms which gave birth to a vast amount of energy that sparked the birth of the first stars. These primordial stars grew large and blew themselves up in a short period of time further fuelling the baby universe.

By the time the Original One had full mastery over his powers, the universe had reached a stable period. Stars had clustered together around Supermassive black holes to form galaxies and near almost every star, planets formed that were made from the leftover material of star formation.

Be as it may, the Original One was still all alone in his world so he decided to create life. In order to test his control, he created a small star with many planets around it. One of the planets in this solar system which would end up being named as Earth, became his testing grounds.

Before life could be formed in a smaller scale, he needed creatures who could handle the fundamental principles of space and time in his stead. This lead to the creation of his first two children, Dialga and Palkia. A third child named Giratina was created who gained mastery over antimatter. All three of these children were given their own personal dimensions above the basic four dimensions of the universe like him.

With the birth of the creation trio, the planet itself needed to be receptive to life. Groudon was created and was given control over land while Kyogre was given control over the seas. However a chance encounter between the two sparked an eternal rivalry between them that would have been disastrous for any smaller life forms around. This led to the birth of Rayquaza who gained control over the air and was tasked with keeping his siblings under control. Once this was done, Regigigas was created to help move the continents around and when all was done, he created life.

With the creation of regular Pokemon and human beings, Arceus created more legendaries. The Lake guardians were created and were given the task to spread knowledge, willpower and emotions among the new creations. Darkrai and Cresselia were created and given charge over the realm of nightmares and dreams respectively. His final creation was a creature called Mew who received his ability of creation. With everything set in motion, Arceus went to sleep.

The next time he woke up was when one of his incarnations, a weaker version of himself tasked with guarding his creations while he was asleep, was caught up in an accident with a human and a meteor and nearly caused time-space continuum to collapse. The actions of that generation's Chosen One helped to save the world and he was fully awake after that.

It has been over two centuries since then and Arceus was once again bored. The universe was at peace and his children were more than capable of taking care of the world without him. He was thinking about visiting his children when he felt something amiss in the dimension. There was some sort of crack in the dimensional barrier which was a puzzling development for him.

He teleported to the location of the crack which he discovered easily. The crack itself was quite large indicating that whatever that had caused it was quite strong. In the other side of the crack he felt the existence of a completely different universe that was not created by him.

Now, Arceus was quite knowledgeable about the existence of other beings that held the power of creation since he had come across quite a few of them during his birth years yet this was the first time he came across a universe that was not created by him and it intrigued him. One feel of the verse had given him enough information for him to be sure that whatever that created that verse was far weaker than him.

On a regular day, he would have closed the crack and went on his merry way but as a great person once said, a bored mind often comes up with the craziest of ideas.

"Are you there Palkia?" He decided to contact the most sane of his three children.

"Yes father."

"Inform the council that I shall be leaving the dimension. You will be in charge in my stead so keep your brothers in check for me." Of his three eldest children, Palkia had inherited his calm mind and rational decision making prowess making her the makeshift leader of the council of legendaries when he was slumbering. She was also the least annoying of them all making her his favourite child.

"I will father. May I ask where you are going?"

"I have no idea myself. I will contact you if I need anything."

" Have a nice trip, father."

With that said, for the first time since it's creation, The Alpha Pokemon's presence vanished from the Pokemon world.

The dimensional gap.

In the hundreds of thousands of years that she had been alive, Great Red had been called many things. Some called her the Dragon God of Dreams, others called her the Dragon of Apocalypse. As a living being, she had long desired to find a mate like many others of her species yet after wandering around long enough, she came to a realisation.

She was far too strong.

Now in her life, she did meet a few creatures that could give her a good fight but none of them had what she was looking for in a mate. Overwhelming power. Even Trihexa, who was supposedly the materialisation of the world's desire to destroy, fell short of her when she went all out.

She soon accepted the reality that her wish would remain just that, a wish. It was for this reason that she began to annoy the only creature that could fight her on even footing, Ophis the Ouroborous dragon and the Dragon God of infinity. Now Red knew that Ophis was far from being infinitely strong but the weaker creatures of the lower realms had coined that term to describe her since they failed to actually grasp the level of strength Ophis wielded.

Speaking of Ophis, the Ouroborous dragon had taken her presence in the Dimensional gap as a threat and formed a group of terrorists that were buffed with her snakes to deal with her. If she didn't find the attempt to be humorous, she sure as hell would have been offended.

Other than Ophis's lackeys coming over to take a look at her here and there, her life was relatively peaceful. Then it all changed one day.

It was a normal day as far as she was concerned. While there was no Sun around to indicate whether it was a day or night, she was well aware of the flow of time. She was about to take a small nap when it happened.

The Dimensional gap shook.

It was a scary proposition. The Dimensional gap, a place where even she felt like an ant, was trembling. Before she could form any thoughts about what was happening, she felt it.

All engulfing power.Whatever that arrived in the gap was strong. Crazy Strong. She could feel it's power flooding the gap, threatening to break it apart like a piece of wet paper. For the first time in her life, she felt many different emotions that she never felt before.

Envy.She envied the lesser creatures in the world outside the gap for they were unable to even sense a tiny portion of this creature's power.

Fear.The mighty Dragon God of Dreams was afraid to fight for the first time in her life owing to the fact that she knew whatever that had arrived could destroy her without a second thought.

Most importantly, she felt an emotion that she thought she would never be able to feel in her life.

Lust.Whatever that has arrived, woke up the female inside her. She wanted to breed with this creature, to be the mother of his children and to fullfill her role in the circle of life. To gain what she was denied due to her powers.

She wanted him. And she sure as hell was going to get him.

It took her less than a few minutes to get to the location of the new arrival, his energy acting like a beacon for her. She was glad that Ophis was currently not present in the gap which meant that she had him all to herself. She just needed to play her cards right.

When she finally reached the location of the power, she was not disappointed. Standing in the Void of the gap was the most majestic looking creature she had ever seen.

It was a White quadrupedal creature that resembled a Qilin from Chinese mythology with Golden ornaments and accessories around it. It had glowing green eyes that was looking at her like she was some sort of a toy. He was much smaller than her standing at just over twenty meters tall yet she knew that he could change his size as he wished. Without any introduction, she got in front of him and said.

"Breed with me.""Huh?" She could hear her new mate sounding confused but she didn't care.

Truly, it was a great day to be the Great Red.

Uh hello there.This is my prototype for a new story that I cooked up while I was away. I hope someone will read this but we'll see.Anyways, while I was checking out the Pokemon fanfiction archive, I was saddened by the sheer lack of Arceus fics since he is my favourite Pokemon. So I decided to write one myself.

Before I continue, Lemme just say that I never actually read highschool dxd and all my knowledge about its plot comes from fanfiction and the wiki. Nipple harem ecchi is not my genre but nonetheless, I like the stories in this fandom.

Another thing to say is that this will be my first attempt at writing romance which has a huge chance of backfiring but smh. The pairing will be Arceus x Great Red x Ophis for the main with any additions depending on the viewers. Also, I genderbend Great Red but I'll stick with it.

Also, there will not be any bashing here and Issei will keep most of his harem. Other than that, here's to hoping this blows up.See ya.