Four Horsemen of the Sea (One piece x male reader fanfic)

You were born in Foosha Village a couple years before Luffy, Ace or Sabo. Your mother died giving birth to you and your father couldn't bare to look at you so he left you alone at the hospital after forcing you to eat the fruit that was once your mother's. You were left alone under the supervision of your nanny for a while until someone mysteriously came in the middle of the night and introduced himself as Monkey D. Garp and that he had a promise to fulfill; soon you were given to bandits as a young child and grew up with them until another couple kids began to join you, one unfortunately died and the other made you promise to stay with Luffy until he's older before he set off and left you with the younger one. Being 5 years older than Luffy, he looked up to you a lot but soon he began to change his attention to a pirate crew called the Red Haired Pirates run by a man named Shanks, he was nice and took care of the village but something about him unsettled you which was why whenever he arrived on the land; you ran to the church to hide and often spoke to a nun there who was a bit older than you.