The Hashiras would likely show concern. Some, like Shinobu, would immediately start looking into possible medical solutions. Giyuu might be more reserved in his worry but would still keep a close eye on Tanjiro. The other demon slayers would also be affected. They look up to Tanjiro, so his sickness would lower the morale of the group. They would try to support each other while waiting for Tanjiro to recover.
Some bullies might mock BTS fanfic. They could make fun of the fans who write or read it, thinking it's just some silly obsession. They might not understand the creativity and passion that goes into creating these fanfics.
Some bullies might mock or make fun of spiderman fanfic. They could see it as something only 'nerds' are into and use it as another reason to pick on fans. For example, they might laugh at the outlandish plot ideas or the 'geeky' passion of the fans.
They're popular because they play on the idea of the members of BTS being in a difficult situation. Fans like to see how their idols would react to something like being wrongly accused of bullying. It gives a chance to explore different sides of their personalities.
One popular 'BTS Bullies React' fanfic might be 'The Change'. In this fanfic, the members of BTS react to a situation where they are wrongly perceived as bullies. It has an interesting plot that shows their shock and determination to clear their names. Another could be 'BTS Bullies React: The Hidden Truth' which delves into a mystery surrounding false accusations of bullying against them. It keeps you on the edge of your seat with its twists and turns.
Percy could react by ignoring Clarisse at first. He might think that if he doesn't give her a reaction, she will stop. But when that doesn't work, he could start to fight back verbally, using his quick thinking to come up with comebacks.
Percy could stand up to Annabeth. He's a strong character. He might confront her directly about her bullying behavior and tell her it's not okay. This could lead to a turning point in their relationship, where Annabeth realizes she's been wrong.