Naruto is an immortal Hanyou who has been living for thousands of years and is traveling the sea. 'He' is found drifting on a dingy by Luffy's Crew on the Grandline and is taken in by them.
Naruto is later found out that 'he' is a ''she' by the crew and tells them the truth about her life and releases Kyuubi who is a big brother figure and the size of big wolf. Naruto has also already met Whitebeard when he was younger and meets his crew along with the Strawhat pirates (This takes place just before Sabody) She also becomes friends with kid and law as they have a crush on her.
Pairing undecided.
Anything else your choice