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.
In general, anime characters' reactions to fanfiction could be quite diverse. They might be intrigued if the fanfiction delves deeper into their backstory in a way that makes sense. For example, if a fanfic explores the childhood trauma of a character that was only hinted at in the original anime, the character might be both surprised and interested. But if the fanfiction is just full of random and out - of - character actions for the sake of being different, they might be dismissive of it.
Anime characters would likely have a range of reactions to fanfiction. If the fanfiction is a well - written love story involving them, they might be flattered. However, if it misrepresents their character in a negative way, they could be angry or offended. For instance, if a character is known for being kind and the fanfic makes them out to be cruel without any real explanation, the character would probably not be happy about it.
There could be characters who are outraged. If the fanfiction distorts their personality or makes them do things completely against their nature, they may be very angry. For example, a noble character made to act like a coward in the fanfiction would likely not take it well.
They could be angry. Consider a character like Ichigo from Bleach. If the fanfiction makes him look weak or changes his character in a way that goes against his core values, he would likely be furious. After all, he has his pride as a Soul Reaper and a protector.
A few might be angry. If the fanfiction shows them in a negative light or changes their backstory in a way they don't like, they could get really mad. For example, if a character with a noble past is made into a villain in the fanfiction, they'd be furious.
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.
Some characters may be excited. They might enjoy seeing their world expanded in new ways. For example, a side character could be happy to see themselves getting more spotlight in the fanfiction.
Kakashi would be very observant. He would look for how the fanfiction writers understand the world of Naruto, the values and the moral lessons. He might even use some of the creative ideas from the fanfiction in his own teachings if he thought they were valuable and in line with the spirit of the original story.
They might be confused at first. RWBY has its own unique lore and concepts that are different from many anime. So anime characters may need time to understand things like Grimm and Huntsmen. For example, if Goku from Dragon Ball was watching, he'd probably be like 'What are these strange monsters?'.
They could be surprised. The fanfiction might show them in scenarios they never imagined, like a shy character being in a very bold and adventurous situation.
There could also be characters who are a bit skeptical. Dolores, with her ability to hear everything, might be able to tell if the fanfiction is based on real events or just pure imagination. If it's too far - fetched, she might be less impressed. However, overall, most characters would probably see it as a form of celebration of their story and be at least somewhat entertained by it.
They could be either impressed or disappointed. The well - written fanfiction that respects the lore and adds new depth to the 40k universe would impress them. But those that are full of inaccuracies or go against the core values of the 40k world might disappoint them. For example, if a fanfiction portrays a noble character as a villain without proper reasoning, the character might be offended. On the other hand, if a fanfiction explores a new aspect of their backstory in an intelligent way, they would be quite impressed.