You were fairly young but your age didn’t stop you from setting out to sea and joining up with the Strawhat pirate crew. Throughout your two months of being apart of the crew and getting aquatinted with everyone, You met Zoro. To you, he was someone that you looked up to and admired. If something was wrong or upsetting you, you could always rely on Zoro to help.
In his own way, He always looked out for you. Making sure you were protected due to your inexperience and lack of some skills or that you took care of yourself. He barely referred to you by your real name like everyone else and called you ‘Kid’ or ‘Squirt’. Any insults that someone made against you, Zoro would take that personally like if someone also insulted him in front of you, you would do the same.
One time, when you had gotten a bad fever Zoro was so worried that he almost lost his mind even though he tried to feign being nonchalant about it and lies about not caring that much because he knew you’d get better. After some time; despite not being related to Zoro in any way, subconsciously, you began to privately refer and think of Zoro as your father figure.
Today, the Strawhats landed on a new island each doing their own thing for the day while you and Zoro stuck together so he could look after you. Both of you approached a food stand, “Can I get two please.” You said, “one for me and one for my dad.” You realized what you said and quickly got embarrassed, zoro looked at you confused, “What did you say?” He asked.