Naruto and Sasuke's Predicament

Naruto and Sasuke were in an intense fight with Kaguya, just as they thought they had the upper hand she had teleported them to a different dimension, depositing them onto Fishman Island, a couple of months before the straw hats would make their way there to save more pirates... Actually, this was before their reunion, just with a couple of months the two have to learn about the un