In a 'naruto is injured' fanfiction, it could be that Naruto overuses his chakra in a large - scale battle against a group of rogue ninjas. This causes internal damage to his body. His friends, especially Kakashi, step in to take over the fight while they arrange for Naruto to be taken to the hospital in Konoha. There, Tsunade struggles to heal him as his chakra system is in a chaotic state.
Perhaps Naruto is injured while on a solo mission to infiltrate an enemy stronghold. He gets caught and tortured, which leaves him severely injured. Sakura and the others then launch a rescue mission, and during the journey back, they face many challenges in keeping Naruto alive and treating his wounds.
Well, one possible plot could be that during a big battle where the Avengers and Spiderman are fighting side by side against a powerful enemy like Thanos. Spiderman, being young and perhaps a bit over - eager, jumps into a dangerous situation without proper backup. He gets injured while trying to protect an Avenger, say Captain America. This could lead to a lot of guilt among the Avengers for not being able to protect him better and also Spiderman having to deal with his own physical and mental recovery.
One possible plot could be that Peter is injured during a superfamily mission. Maybe he's trying to protect a younger member of the superfamily. The other members then have to step up and take care of him while also dealing with the threat that injured him in the first place.
Well, it might be that in the fanfiction, little Estel is injured while trying to protect her friends. For example, she steps in front of a dangerous spell that was aimed at her companions. And then, her friends have to find a way to heal her, perhaps by seeking a rare herb or the help of a powerful wizard.
It could be about Neopolitan getting injured during a fight against the main RWBY characters. Maybe she underestimated their strength and got seriously hurt, which then leads to a change in her attitude towards them.
Maybe Peter was doing a science experiment in class and something went wrong, like a chemical explosion that injured him. The other students could be in shock and the teacher would have to quickly take action to get help.
One possible plot could be that Tony Prito is an athlete. After injuring his leg, he has to go through a difficult rehabilitation process. He faces self - doubt and the fear of not being able to return to his sport. His friends and family support him, and he gradually overcomes his physical and mental challenges and makes a comeback.
One possible plot could be that Sungjae gets injured during a concert. Fans are worried sick. In the fanfic, they could show the backstage chaos as his bandmates try to figure out what to do while the fans outside are praying for his quick recovery. Maybe a young fan writes a letter to him expressing her concerns and how his music has inspired her, and this letter somehow reaches him in the hospital, giving him the strength to recover faster.
Well, perhaps Thor is injured while on a solo mission for the Avengers. He might be exploring an ancient ruin in search of a powerful weapon to help the team, but there are hidden traps. One such trap injures him severely. His injury could then be a catalyst for the other Avengers to learn more about the place where he got hurt and also about the weapon he was after.
Perhaps in the fanfic, Chuck Casey is in a fight or a brawl and a bystander (the fan) gets caught in the crossfire and is injured. It could then show how Casey's life changes as a result. He might face legal issues or public outcry, and the story could detail his attempts to redeem himself in the eyes of the public and the injured fan.
Perhaps the fanfic focuses on Beckett's struggle with the physical pain and mental stress of being injured on the job. It might show how he has to deal with insurance companies, doctors, and his own insecurities about whether he'll be able to return to work in the same capacity.