Annabeth would probably be a mix of amused and exasperated. She might tease him a bit at first but then help him out if he's in an uncomfortable situation because of the dress. Grover would be really shocked at first but then try to be supportive. He might say something like 'Well, Percy, you look... different, but it's okay!'. As for Tyson, he would just be happy to see Percy and not really care about the dress all that much.
Annabeth would be furious. She would immediately confront Jason, demanding an explanation. She's very protective of Percy and would not stand for him being hurt without a good reason. She might even suspect Jason of having some ulterior motives at first. Nico, on the other hand, would be more reserved but equally angry. He would keep a close eye on Percy's recovery and might even be tempted to use his powers to seek revenge on Jason if Percy's condition was serious.
Well, his friends' reactions would be quite diverse. Annabeth might see it as an interesting new development. She could be a bit protective, making sure that Percy, as a girl, isn't taken advantage of. Grover would likely be his goofy self, but also offer his support. He might make some silly jokes at first to lighten the mood. Other friends at Camp Half - Blood would also have different reactions. Some might be curious, some might be a bit hesitant, but overall, they'd probably accept Percy in this new form because they know it's still Percy deep down, with the same brave heart.
His other friends from Camp Half - Blood would have mixed reactions. Some would be proud of him for wanting to serve and protect in a different way. Others might think he's crazy for leaving the world of demigods and getting involved in mortal military affairs. They know he has a duty to the demigod community, and joining the military could put that in jeopardy. But overall, they would support him because they know Percy always follows his heart and they trust his judgment.
Annabeth would probably be a bit skeptical at first. She might think Percy is just getting distracted from their Greek - related quests. But once she sees how his samurai skills could be useful, she would start to support him. Grover, on the other hand, would be more excited. He loves new things and cultures, and he would be eager to learn about the samurai world from Percy.
He could also be very kind and gentle in his reaction. Percy might not want to hurt his friends' feelings, so he'd try to let them down easy if he doesn't feel the same way. He might say something like 'You're a great friend, and I value our friendship so much' to show that he cares about them but not in that romantic way. On the other hand, if he has some hidden feelings for one of them, he could start to show more interest in return, like spending more time alone with that friend.
Well, his friends' reactions would be complex. Annabeth would likely be in a state of disbelief at first. But then she'd start to analyze the situation, trying to figure out what caused Percy to turn into a kid and how to reverse it. Grover would be more emotional. He'd be like a big brother to Percy in this state, making sure he doesn't get into too much trouble. And the other demigod friends would probably be a bit confused, but they'd come together to support Percy and try to find a solution. They'd also have to deal with the fact that Percy's abilities and knowledge are now limited as a kid, which would change the way they work together.
His friends would likely be shocked at first. Annabeth might feel a sense of loss as Percy is now something different. Grover would probably be worried about how Percy is handling his new godly status. They would also be concerned about whether Percy would still be on their side or if his new powers and responsibilities would change him.
The characters' reactions would vary widely. Annabeth would likely be critical of any fanfiction that got the details of her character or her knowledge wrong. She's very intelligent and detail - oriented, so inaccuracies would bother her. On the other hand, if a fanfiction captured her essence well, she might secretly enjoy it. Leo would probably be excited to see all the creative ideas people had in fanfiction, especially if there were cool new inventions or adventures in them.
In a fanfiction, the Avengers' reactions to Percy Jackson's powers would be complex. Natasha Romanoff would immediately start thinking about how to use Percy's powers to their advantage in a mission. Bruce Banner, as the Hulk, might be a bit envious that Percy has such a natural and controlled power, while his own transformation is more of a chaotic force. Steve Rogers would be in awe of Percy's connection to an ancient power source, the Greek gods. And Clint Barton would probably make some jokes about Percy being like a human water hose, but deep down he'd be impressed. Tony Stark would want to incorporate Percy's power - controlling abilities into some new technology, or at least try to understand the science behind it.
Percy would feel a deep sense of guilt as well. He might think that he should have been there to protect her. So, he would be determined not only to free her but also to make sure whoever is responsible pays for what they've done. He would use his powers over water to his advantage, like creating distractions or using water to weaken the enemy's defenses while he tries to reach Annabeth.