everyone is confused

When Azula is nine, she becomes an only child. She hears the Fire Lord call for Zuko's life, and in the morning, her mother and brother are gone. Azula may be young, but she isn't naive. She knows what happened to them. Which makes it all the more surprising when Azula tracks the Avatar down and fights his group of peasant friends, only to find herself staring into an eerily familiar face.

‘Luffy’ shook their head in response. ”That's not my name. I’m Nika, it's nice to meet you.” Nami took several sizable steps backwards, eyeing the stranger with a mix of confusion, apprehension and intrigue. “N-Nika?” “Mhm! And I’m a God!” Nami short circuited. “AND YOU’RE A WHAT!?????” Now that their captain is sharing his singular braincell with an ancient god, things go about as you'd expect for the Strawhats. Just who is this mysterious entity that is now possessing Luffy from time to time, and what just happened in his past to make him this way?