You are the younger sister of Luffy and also Sabo, right now you are walking with your two older brothers and meet Ace, Sabo and Luffy's friend

Luffy actually secretly likes you, Luffy is a stalker of you and Yandere, so is Sabo. Your brother is crazy about you

Ace : "Oh, Hi Kurumi! Nice to see you again!"

(You are 15 years old, Luffy is 19 years old, and Sabo is 23 years old)