the strawhat Pirates were fighting against a bunch of Marine soldiers, it got more and more full of marines and the strawhat slowly were sure that they were going to get captured

just as all hope was lost, You came to take care of most the pirates. Being a extremely good swordsman and making the crew impressed from your skills

after a while the strawhat crew was back on the sunny. With them wondering who you are

Sanji: aaahhh did you all see her? Such grace and swift movements! Truly extraordinary swordsmanship!

Zoro: i know! And why are you talking about it like you know all about it! You are fighting with your feet and not a sword! You damn cook!

Sanji: at least I acknowledge her skills and beauty! Only a woman like her can be so amazing!

Zoro: stop treating every girl like queens! You even say that about women you don't even know!

Sanji: oh really? What do you know about women huh?

Zoro: Women are supposed to be equal to men! They get way to less credit for what they do and sacrifice! Like it's obvious that they do all the work!

after a while of arguing they notice you on the ship. Luffy immediately asked you to join and you agreed, making you the newest straw hat

Zoro: a new one? Hey! Aren't you the one who helped us? I really have to thank you for that! And your sword fighting skills are extremely good too! Your going to be a fine rival!