Prologue
There was a heavy red dust that hung around and made it so that no one could see a thing, there was a metallic smell in the air and a ringing from the silence. There was no wind and the dust hid the sun. As the dust slowly started to settle the lone figure standing in the clearing could see what was around her. Bodies' lay everywhere in awkward positions, some arms and legs were bent backwards and some were missing limbs altogether. The ground was painted red with blood. The lone figure, a women in her early 20s, spun around taking everything in, every mangled body. Running from body to body she began looking for any survivors.
No one had survived the brutality of the fourth shinobi war, no one but Uzumaki Naruto. Naruto continued searching desperately trying to find anyone who may have survived. She had just finished fighting against Madara and Kaguya, her once beautiful red hair is now caked in mud and blood turning into a gross shade of muddy burgundy. Her clothes are all torn to shreds.
Naruto kept her back turned to the god tree, as it slowly died as well. A reminder of what was happening to the world. Everything was dying, it wasn't just the occupants of the seven nations that were gone, the ground itself was dying. She couldn't remember the last time she had seen a single bird. The toad summonses were all dead as well. She was the lasting living soul in the world.
Eventually her legs gave out from beneath her and she broke down crying, crying for the lost of her friends, her family and her home. She cried until she had no more tears to shed and just laid in the mud limply. She took a moment to look back on her life until she remembered a seal that she had started with Jiraiya and finished with Kurama. A seal that can take her back in time, to before the war started.
It had never been tested and there was no way to prove that it could work and even if it did there's a good chance it could kill her. But at this point there was nothing left to live for. She stood on her shaky legs and began to clear a spot on the ground. Using the still fresh blood from one of her many cuts she started to create the giant seal, slowly and painfully. She had no chakra spare to heal herself but the blood would dry and she'd have to open up the cut again to continue the seal.
Once it was done she took a step back to admire her work and check for any mistakes. Once she confirmed that there were none that she could see, she walked to the centre of the seal and started gathering what little chakra she could, even reaching out to absorb any natural chakra that was left before everything truly was dead. As the seal began to activate she felt a burning sensation through out her body, she looked down to see the seal crawling its way across her body. Before she could react the world are around her turned dark and she began to fall through what she could only assume was time. The strain on her body and chakra was enough to send her into the deep dark depths of her mind as she passed out.