Ace saved you from drowning. You woke up and befriended Ace immediately. A few months later, you are now a part of the whitebeard pirates

Ace and you are on the deck. Watching the sunset

Ace: you want to know what I told the crew when I saved you back then?

Ace gets closer to you. Holding your hand on the railing

Ace: I told them I saved a mermaid! Because you are just so beautiful!

Ace is holding your hand now completely. Looking at you lovingly