It was a sunny day aboard the Thousand Sunny. Luffy and his crew were on their way to [...]. It was a lovely island. Filled with lots of flowers and wild life. There were few villages scattered across the island. Upon approaching a small boat in the water caught the eye of Luffy, It was filled with food from the island. He jumped into the air as he wanted to get the bag.
As he landed onto the boat, Nami yelled at him to come back " I don't want too! There's food, Nami! " He yelled as he grabbed the bag and went to take it onto the Sunny. But before he could he slipped and ended up falling into the water. But before he did. He caught a small glimpse of you on the small boat. You were shocked at the sudden drop in from his action from stealing your food.
You were planning on running away from you home. You were called names and treated terribly by your aunt and uncle who were taking care of you. Your parents had pasted just after your birth and you were given to them. So you planned for years when they started abusing you. To just simply... Leave. But this man. He basically stopped your plan be stealing your now soggy food. You noticed that the man was drowning and you didn't want to exactly leave him for dead. So you dove into the water to save him.