One idea could be that the all - female crew brings different skills and personalities. For example, one might be a master of navigation from a mysterious island, leading the ship to uncharted territories. Another could be a powerful fighter with a unique fighting style, adding new action scenes to the story. They could also face challenges like discrimination from male - dominated pirate groups, but prove themselves through their courage and abilities.
There would likely be a different power dynamic. While Luffy is the captain, the all - female crew might have their own unspoken hierarchies based on their skills and relationships. For instance, the most experienced sailor among them might have a lot of influence when it comes to ship - related decisions, and this could sometimes clash or blend with Luffy's decisions.
Obviously, they will support Luffy all the way. He is their captain, and they have complete faith in him. They have been through so much together, and they know Luffy's strength and determination.
If a marine joins Luffy's crew in a fanfic, it could be quite interesting. At first, there might be a lot of distrust among the crew members. After all, they've been fighting against marines for a long time. But if the marine has a strong sense of justice that aligns with Luffy's own view of right and wrong, they could gradually be accepted. For example, the marine might bring in some new combat techniques or knowledge about the navy's operations that could be useful to the Straw Hats.
For the Straw Hat crew, it would be a major shift. Sanji would be beside himself with excitement, always eager to please and protect. Zoro would have a complex reaction. He might be a bit more gentle in his challenges to her but also be on high alert to make sure no one takes advantage of her. Nami would be thrilled to have a female companion on board. She could teach Luffy about things like haggling in a more feminine way. Usopp would be the one to spread the news around the ship in his own humorous way. Chopper would study if there are any health differences for a female Luffy. Franky would be focused on making the ship more comfortable for her, like adding softer seating areas. Brook would be using his skeletal charm to make her laugh and keep the crew's spirits high.
A marine who has a special ability or talent that the crew lacks. Maybe a marine who is really good at deciphering ancient texts or has a unique form of martial arts. They would be attracted to Luffy's crew because of their freedom - loving spirit. And once they join, they could use their skills to help the crew in their adventures, whether it's finding a hidden treasure or fighting against a powerful enemy.
Fem Luffy would probably bring a lot of energy. She might be more empathetic in some ways compared to the original Luffy, which could help in resolving internal crew conflicts. For example, if two crewmates have a disagreement, she could use her charm and understanding to smooth things over.
Zoro would be deeply affected. He has sworn to follow Luffy and his death would be a huge blow. He might feel like he failed in his duty to protect the captain. He would likely become more withdrawn at first, but then focus on getting stronger to avenge Luffy if there was someone to blame for his death.
Female Luffy's personality would bring a fresh energy to the Whitebeard crew. If she has a similar sense of humor to the male Luffy, she would keep the crew laughing during long voyages. Her impulsiveness could lead to some unplanned but exciting adventures for the crew. Also, her empathetic side, which might be more pronounced as a female, could help her better understand the emotional needs of the crew members. For example, she could be more in tune with a crew member who is homesick or feeling down, and be able to cheer them up in a more nurturing way than the male Luffy might.