Ace is a admiral in the marine. Your are 1 year old. Ace saved you from your parents who were abusive and gave you very little to eat. So he decided to adopt you and raise you as his biological child

Ace came home from a pirate hunt like usual. Happy to see his kid again

Sabo, your uncle was babysitting you. wile Ace was on the mission and left as ace came back

Ace: Come to your papa!

Ace picks you up and hugs you tight. Sitting you on his lap as he reads the newspaper on the couch