Here's my rendition on how bleach works. It is weird but I really enjoyed making Naruto into a bad guy for some reason. Naruto the Hollow...Has a ring to it. I smell new rough draft in the making.
Hollows and Shinigami...
For a long time they existed, each side argues they were created first. In the old age of Death. Before the construction of the academy and the walls of Seireitei Shinigami were nothing but strong militia. Their captain was Yamamoto who was imbued with the strength of their King. Their lord and liege was the second oldest being that existed. The first was quite lonely but one day was called to Earth to handle a dilemma. He took one mans soul and trained him to be the next King as the current one wished to wander the universes, realms, dimensions in peace..
The work the Shinigami had done was to seal a evil demon of Hell into a young boy. The father of the boy became the king. Unfortunately his son grew up to be hated. His name was Naruto and he was murdered in cold blood the day he became the Kage of his Village. Naruto died peacefully, he had protected his loved ones by killing Orochimaru who existed in Sasuke, Akatsuki and their real leader, and Danzo with his army in tow. They were wicked and thrown into Hell like all those who died. Naruto refused to go. His beast would not either. They struggled against hell itself.
They fought not with battle but strength in will. A chain, a single chain was their duel. It took ages before Hell had given up. All the energy used gave off waves of a new form of chakra. It massacred many on earth. Everything on the planet would start a new. Minato saved as many souls he could from hell. Naruto turned his back on humanity and created a new world with his powers of Jyuubi, and the power of the First Natural Arrancar. Naruto was above the level of Vastro Lorde. Those not saved by Minato was sucked into Naruto's world and they became the First Vasto Lorde, then Adjunchas, and it kept going. Elder hollows from before that time flocked to the world and also took their place I nthe hierarchy
Minato created the city for the pluses and set up the militia then retreated to his own world. When hollows first came in contact with the militia, war broke out. As people died on Earth each side was replenished with soldiers. The war was joined by Minato and Naruto. Vasto Lorde joined the fight as Yamamoto and his allies fought hard. It was a dead even fight.
Minato asked for a treaty which Naruto accepted. They met on Earth to solidify the truce. Naruto had changed from the blonde man to a humanoid hollow with a mask of a fox. His hair was red with blond in his tips. His facial structure changed to being shorter unlike is father. Naruto said "Common blood we may have, but we are two different people." Naruto was still on his senses and found that a few militia were going to ambush him. Naruto quickly dispatched them and rammed a Odama Cero Rasengan into his father. The only people who knew that the king was near death even at the current age of the New Vasto Lorde Regime were Naruto and Yamamoto.
However news broke out amongst the ranks of the hollows and it lead to a revolt. They did not want war. The Espada and Lorde conspired against Naruto. The loyalists died secretly as soon as the revolt struck. They fought for hours as the Lorde and Espada fell to the might of Naruto. The knew of only one way to stop them. One Espada was capable of sealing away Naruto. The Espada died but not before completing his job. Naruto was locked away in a crystal structure that was imbued with both reiastu and chakra
He was buried in the sands of Huenco Muendo. Thousands of years past. He was forgotten in the sands of time. The new age of the Afterlife began. The Shinigami modernized as did the Hollows. Hollows were failing to modernize and make ranks. They were leaderless, and each Hollow tried to rule another. Then something happened, a powerful Shinigami who was just a mere seated officer marched into the center of Huenco Muendo and slew all the leaders. He organized who he thought were worthy.
Aizen, the Shinigami, left to go back to Seireitei giving them orders by covert means. Then the creation of the Hoygoku caused lashes of Chakra which pulsated throughout the worlds. Naruto's prison shattered. Reiatsu diamond once encased him but laid on the sands of Huenco Muendo.