He could use it as motivation to improve. Maybe there are aspects of the novel that he can work on, like the marketing or the plot development. He could also try to engage with the people who made the comment in a polite way to understand their perspective better.
Well, there are also those characters who might be a bit shocked or confused. Take Levi from Attack on Titan. He's a very serious and no - nonsense type of character. If he were to read some of the fanfic about him that deviated too much from his own self - perception, like being made into a comical or overly emotional character in the fanfic, he might be taken aback at first. But then he might also realize it's just a different interpretation and not take it too seriously.
At first, the public was very much against the Central Park 5. There was a lot of media coverage that painted them as guilty. Because the crime was so heinous and the victim was a white woman in Central Park, which is a well - known area, people were scared and angry. They wanted someone to be punished. The fact that the accused were young black and Latino males also played a role in the public's immediate negative reaction. There was a sense of 'us vs. them' that was stoked by the media and the general climate of the time.
Sakura would probably be both scared and fascinated. She might initially be frightened by the dinosaurs but then use her medical ninja skills to help any injured people. Sasuke would be more aloof. He'd likely see the dinosaurs as just another challenge. He might study their behavior to find weaknesses and use his sharingan if any of the dinosaurs pose a real threat.
Ladybug would see Disneyland as a place full of positive energy. She would be cautious at first, always on the lookout for any signs of trouble. But as she explores, she'd start to enjoy the different shows and parades. Chat Noir would be like a big kid. He'd want to try every single ride and interact with all the costumed characters. He might even challenge some of the Disney villains to a friendly duel. And Marinette, well, she'd be busy taking mental notes for her future fashion creations, while also being in love with the whole Disney atmosphere.
Well, it depends on the nature of the fanfiction. Some anime characters might be amused if the fanfiction is light - hearted and full of comical situations. For example, if it's a fanfic about a cooking competition among the characters from a shonen anime, they might react with good - natured laughter and competitiveness. They could also be confused if the fanfiction takes their story in a very strange or unexpected direction, like suddenly making a character from a historical anime end up in a space adventure.
Some Avengers might be really confused at first. For example, Tony Stark would probably be intrigued yet find it a bit odd. He'd be analyzing it like he does with new tech, trying to understand the appeal and the different universes within the anime fanfiction.
Daniel was a figure known for his unwavering loyalty to God. He served in a foreign court but still adhered to his religious beliefs. This made him some enemies who plotted against him and got him thrown into the lions' den.
One great anime react fanfiction could be one where the characters from 'Naruto' react to modern technology. It's interesting to imagine how Naruto and his friends would be amazed by smartphones or the internet. Another could be characters from 'Attack on Titan' reacting to a world without Titans, exploring their newfound peace and how they adjust to normal life. There are also many 'My Hero Academia' react fanfictions, like the heroes reacting to different villain strategies from other universes.