Well, it could lead to self - discovery. Maybe they'll see aspects of themselves that the fans have picked up on that they hadn't noticed before. They might also get some new ideas for their own development. Like, if a character is always seen as very serious in the original story but in the fanfiction is shown to have a great sense of humor, they could start to incorporate that into their own actions.
It could be really strange. They might be shocked by some of the wild interpretations or relationships that fans have created in the fanfiction. For example, if a heroic character in a story reads a fanfiction where they are made to be a villain in an alternate universe, they would probably be very confused and perhaps a bit offended.
They could be angry. If the fanfiction portrays them in a negative or untrue light, like making them do something completely against their moral code, they would likely be furious. For instance, a noble knight character reading a fanfiction where he is a cowardly thief would not be happy at all.
Well, it could be really interesting. Naruto might be quite confused at first. The world of RWBY is very different from his own. He might be intrigued by the unique characters and their abilities in RWBY. Maybe he would compare the fighting styles in RWBY fanfiction to those in his ninja world.
Naruto and Rias reading fanfiction could lead to an interesting exchange of ideas. Naruto, with his positive and determined attitude, might look for inspiration in the fanfiction for new ways to train or protect his village. Rias, who is more into the social and hierarchical aspects of her world, could be interested in how the fanfiction depicts the relationships between different species like devils, angels, and fallen angels. They might also start discussing how accurate the fanfiction is in terms of character personalities. For example, Naruto might say that a fanfiction version of him that is too dark doesn't feel right, and Rias could agree that a fanfiction that misrepresents her devil clan's values is off - base.
Oh, that would be quite an interesting situation. Yoongi might be really surprised at first. He could either start teasing Jin about it, like 'Hey, Jin, what kind of crazy stories are you into now?' Or he might just laugh it off and be like 'Well, that's a new hobby, huh?'
Well, if Harry Potter creates his own magic in fanfiction, it could lead to him being either celebrated or feared. On one hand, his new magic could solve many of the problems the wizarding world faces. But on the other hand, the Ministry of Magic might see it as a threat to their control. They could try to regulate or even suppress his new magical creations.
In a fanfiction where Naruto is banished and starts a village, there would be many challenges. He would have to deal with the fact that other villages might see him as a threat. To counter this, he would need to build strong defenses. He could use his knowledge of Konoha's defenses and improve on them. In terms of the village's internal structure, he would create a council of elders, but unlike in Konoha, this council would be made up of people from all walks of life. They would make decisions together, and Naruto would be more of a guiding figure. His village would also be a place where people can come to learn about different types of ninjutsu, as Naruto would encourage the sharing of knowledge.
In this fanfiction, Naruto might gather those who also feel ostracized. He could build a village based on acceptance and equality. His new village might have unique ninja training methods that focus on individual strengths rather than just traditional clan techniques.
If the characters watched RWBY fanfiction, they might be amused. For example, they could find the creative and sometimes wild interpretations of their personalities and relationships quite funny.
They might be quite surprised. Some characters could find it amusing, while others might be a bit offended if the fanfiction portrays them in a way that doesn't match their self - image. For example, Tracer, being a positive and energetic character, might laugh at a funny fanfiction about her adventures. But a more serious character like Soldier: 76 could be less receptive if the fanfiction makes him seem out of character.
They might find it really interesting or strange. Some characters could be amused by the different takes on their personalities in the fanfiction. Others might be a bit offended if the fanfiction portrays them in a negative or untrue way.