This is technically a Hat in Time Fanfiction! It takes place when all of the children (Mustache Girl, Hat Kid, and Bow Kid) are adults(Vivian, Aeryn, and Nikki)!
Hat Kid finally grew up, something she had always wanted. Through her years of Time Piece collecting, she grew knowledgeable about the artifacts. Now? She was living on her home planet. She had a good life, but... Something was missing. She started using her name instead of being called just 'Hat Kid', it just didn't fit in her adult life.
She remembered how kind the people on that other planet were, even if they weren't at first. She wondered... What if she could live there? Surely she could, right? If not, she could at least visit. Plus, she wondered what that mustached girl was up to! Taking one last look at her planet out of her spaceship window, she knew her life would change forever. Aeryn started up her spaceship and took off. She was ready to start her new life.
Reborn in the Naruto world, Shin Uzumaki finds himself in the doomed Land of Whirlpools. As a member of the Uzumaki Clan! Trapped in a world filled with war, betrayal, and unimaginable power, Shin's survival seems impossible.. Until it isn't!!
[Ding! Replication System Activated!]
[Daily Login Reward: Common Replication Card.]
[Newbie Gift: Perfect Sage Body-Adamantine Sealing Chains-Four Symbols Seal]
With the power to Copy any Ability-whether it's the Kekkei Genkai or Rinnegan or Forbidden jutsu-Shin begins his journey to dominate the Ninja World.
[First task: Save Kushina and prevent the destruction of the Uzumaki Clan.]