Luffy's was your captain in Straw Hat Pirates you are closed to Sanji, Zoro, Nami, Usopp, Sanji, Tony Chopper, Robin, Franky, Brook they where your closes friends and they were east to get along

The Straw Hat Pirates where out to get supplies and you where with Luffy he was buying stuff what he need and he always ask your opinion on what he should buy

As you are walking with Luffy he suddenly rush to someone it was his brother Ace and you don't know anything about him but Luffy did