Often, in fanfictions where Naruto is severely injured, it's related to a prophecy. There could be a prophecy that states Naruto has to face a certain trial that will almost cost him his life. He goes into this trial with full determination but the challenges are too great and he ends up severely injured. Also, some fanfictions explore the idea of Naruto being poisoned by a new and deadly toxin created by an enemy shinobi. This toxin slowly weakens him and causes him to be severely injured as his body tries to fight it off.
One common plotline is a powerful enemy ambush. For example, Naruto might be on a solo mission and get caught off - guard by a new, extremely strong villain. This villain could use some unknown jutsu to severely wound Naruto. Another plotline could be Naruto sacrificing himself to protect the village. He might take on a massive attack meant for the Hidden Leaf, resulting in him getting severely injured but saving the village in the process. And sometimes, it could be due to a failed experiment. Maybe he was trying out a new and risky form of his chakra manipulation and it backfired, leaving him severely injured.
In some fanfictions, Naruto gets severely injured in a battle against an old enemy who has become much stronger. This could be Orochimaru, who has found a new way to enhance his powers. Orochimaru might target Naruto when he is alone and vulnerable. Naruto, being the hero he is, would fight bravely but still end up getting seriously hurt. Another situation could be a betrayal within the village. A once - trusted ally might turn on Naruto and use their knowledge of his weaknesses to attack him severely.
Another plotline could involve Naruto being injured as a result of a trap. Maybe he's exploring an ancient ruin in search of some power to help protect the village and he triggers a hidden mechanism. This could lead to him being severely wounded, and his friends would need to come rescue him while also trying to figure out how to disarm any other potential threats in the area.
One common plotline could be that Jaune gets injured during a battle against a powerful enemy. His friends then have to step up to protect him while also trying to find a way to heal him. For example, they might search for a rare herb or a powerful healer in a far - off land.
Well, often in these fanfictions, a plotline is that Kuroko's injury reveals hidden sides of his character. Maybe he shows more vulnerability than he usually does in the anime. Also, it can lead to new relationships or a strengthening of existing ones. For example, an opponent who respects him might come to visit him during his injury and they could form an unexpected friendship. Or his relationship with his coach could become more in - depth as they discuss his future in the team considering the injury.
Often, in these fanfictions, there's a search for a cure. Castiel might use his angelic powers to try and heal Dean but face some sort of obstacle. Maybe the injury is of a supernatural origin that requires a special ingredient or ritual to fix. This leads to an adventure where the characters have to search for the solution while still dealing with Dean's deteriorating condition.
One common plotline could be Damon's friends rallying around him to help with his recovery. They might take turns staying by his side, bringing him food and entertainment. Another could be Damon struggling with the physical and emotional pain of the injury. He may have moments of self - doubt and fear about whether he'll fully recover. And a third plotline might involve a mystery surrounding how he got injured, with clues being uncovered as the story progresses.
Often, a fanfiction might have Naruto severely wounded during a training accident that goes horribly wrong. He might be trying a new and extremely powerful jutsu that he's not fully mastered yet. This could result in him being in a critical condition. His friends and mentors then have to figure out how to heal him and deal with the consequences of his over - ambition in training.
One common plotline could be his brothers' reactions. They might go into overprotective mode. For example, Donnie would immediately start working on medical treatments while Raph gets super angry and wants to find out who or what caused the injury. Leo, on the other hand, would try to keep everyone calm and focused on getting Mikey better.
Another situation could be during a training session gone wrong. Maybe he's trying a new and extremely powerful jutsu that he's not fully mastered yet. The chakra backfires on him, causing internal injuries. His friends then have to find a way to help him recover, which could lead to some emotional and heart - warming moments in the fanfiction.
One common plotline could be the other BTS members rallying around J - Hope during his injury. They might show extreme support, like taking turns to be by his side at the hospital, bringing him his favorite things to cheer him up. For example, Jungkook could bring his guitar and play some soft music for him.
One common plotline is that Legolas gets injured while protecting his friends. For example, he might jump in front of a weapon aimed at Aragorn or Gimli. His injury then becomes a test of the group's loyalty and friendship as they strive to heal him.