Well, it's a bit complex. The anime's ending in the manga might not have a clear, set point. Sometimes, they might stop at a certain plot arc or make adjustments for various reasons like runtime or story emphasis.
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.
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.
Well, without having in - depth knowledge of the 'lookism light novel', I can only make some assumptions. There could be a protagonist who is an ordinary - looking person but has great qualities inside. This character might be contrasted with some antagonists or other characters who are more focused on physical appearance and use it to gain power or popularity. There might also be some side characters who are either supporters or part of the problem - creating environment regarding lookism.
Since I haven't read the 'lookism graphic novel' thoroughly, I can't name the exact main characters. However, it's probable that there are protagonists who are on a journey to either overcome lookism or understand its implications. There might be a character who is initially judged harshly because of their looks but has amazing inner qualities. And there could be another character who seems perfect on the outside but has his own insecurities related to the shallowness of a look - based society.
The main character is the boy who can switch between his original and his handsome body. There are also his friends, some of whom are initially attracted to his handsome form but later come to know the real him. And there are the bullies who target him when he's in his original, less - attractive form.
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.
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.