How would the Straw Hats react to Captain Kuro joining them in the fanfic?

Well, if Captain Kuro joins the Straw Hats in the fanfic, it could bring a lot of chaos at first. He has his own devious ways and skills. But maybe he could be reformed. The Straw Hats are known for their ability to change people. He might use his intelligence in a more positive way for the crew, like helping them plan strategies against other pirates or find hidden treasures.

Luffy would probably be excited. He loves having new and interesting people on his crew. Zoro might be a bit cautious at first but would come to respect Naruto's fighting skills. Nami would see Naruto as someone who could be useful for his abilities.

In such a fanfiction, the plot could involve Robin being a young prodigy. Maybe she initially has some secrets that she's hesitant to share with the Straw Hats. For example, she might be on the run from some powerful organization that wants to use her knowledge for evil. As she joins the Straw Hats, she slowly starts to trust them more and more. She could use her intelligence to help the crew out of tricky situations, like deciphering ancient maps or understanding the language of long - lost civilizations. And along the way, she forms deep bonds with each member, especially Luffy who accepts her without hesitation, which gives her a sense of belonging she's never had before.

At first, not very well. The Straw Hats have had bad experiences with Marines. They might see the Marine OC as a potential threat. However, if the OC shows that they are different from the typical corrupt Marines, like by helping the crew out of a tough situation right away, they might start to be more accepting.

Well, initially, the Avengers would be quite surprised. They are used to dealing with technology, super - strength, and other more 'normal' superpowers. But once they saw what Harry could do, like conjuring things out of thin air or using defensive spells, they would start to see the potential. Hawkeye might be a bit skeptical at first, but as Harry proves himself in battles, he would gain Hawkeye's respect. Black Widow would be quick to figure out how to incorporate Harry into their strategies, and the rest of the Avengers would follow suit.

She would likely become more open. At first, young Robin might be reserved due to her past experiences. But as she spends time with the Straw Hats, she'll start to share more about herself. For example, she could gradually open up about her family and her dreams for the future. Her confidence would also grow. The Straw Hats' acceptance and support would make her believe in herself more. She might become bolder in using her skills, like when exploring dangerous ruins or facing powerful enemies.

If Naruto was raised by the Straw Hats, he'd probably be a very different person. He might be more carefree like Luffy. For example, he'd be used to the wacky adventures on the Grand Line. His ninja skills could blend with the pirates' combat styles, creating some really unique fighting techniques.

Naruto is known for his loyalty and determination. If he joins the Straw Hats in fanfiction, these traits would strengthen the crew's unity. His loyalty would mean he'd always have the backs of his new pirate friends, and his determination would inspire them to keep pushing forward, especially in the face of difficult challenges. For example, when they encounter a powerful enemy, Naruto's refusal to give up would encourage the Straw Hats to keep fighting no matter what.

His personality would become more outgoing and adventurous. The Straw Hats' lifestyle is full of exploration, so Naruto would be more eager to take risks.

Well, it could be really interesting. There would probably be a lot of initial distrust from the Straw Hats, since they are usually against the Marines. But if the OC has a good heart and a strong reason for leaving the Marines, like disagreeing with their corrupt ways, the Straw Hats might gradually accept them. The OC could bring in some unique skills and knowledge about the Marines' operations, which could be useful for the crew in various situations, like getting out of tight spots when facing other Marine forces.