Their relationship could deepen quickly. Naruto getting hurt for Hinata makes her realize just how much he cares for her. She might become more open and affectionate towards him, and Naruto, seeing her concern for him while he's injured, might also start to see her in a new light, as more than just a friend.
In another scenario, Naruto and Hinata are exploring an ancient ruin when traps are triggered. A large boulder is about to crush Hinata, and Naruto uses his body to stop it. He gets injured badly. Hinata then uses her skills in medical ninjutsu that she has been secretly practicing to treat Naruto's wounds as they wait for help to arrive.
One scenario could be that Naruto gets hurt while trying to save Sasuke from a dangerous situation. Sasuke then feels guilty and starts to realize how much Naruto truly means to him. In the fanfiction world, this might prompt Sasuke to be more open about his feelings towards Naruto, which could range from deep friendship to something more romantic. The hurt Naruto endures can be a turning point in their relationship, making Sasuke re - evaluate his actions and priorities.
The Kumo ninjas could also be working in a coordinated way. They might have a strategy to isolate Naruto and keep him away from Hinata. Naruto has to break through their formation. And if the Kumo ninjas have some sort of intel on Naruto's abilities, they could plan their attacks accordingly. So Naruto has to be constantly on his toes and come up with new tactics to overcome these challenges and save Hinata.
In such a fanfiction, one possible plot development could be that Naruto sacrifices himself during a major battle against an extremely powerful enemy. Maybe an enemy that has the power to destroy the entire Hidden Leaf Village. Naruto, being the hero he is, steps in to protect Hinata and in the process, takes a fatal blow meant for her. This would lead to great sorrow among the villagers, especially Hinata who would be heartbroken. She might then vow to carry on Naruto's will and protect the village in his memory.
One common type might be about Naruto accidentally hurting Hinata during a sparring session in the Hidden Leaf Village. Maybe his new jutsu goes a bit out of control and he ends up physically injuring her, which then leads to a story of his guilt and attempts to make it up to her.
One possible fanfiction plot could be during a village invasion. Naruto, with his unwavering sense of justice and his growing feelings for Hinata, shields her from an enemy's attack. He might get seriously injured, which then spurs Hinata to tap into her own hidden power to defend him in return. This kind of story can explore their bond deeper and show how they support each other in tough times.
A misunderstanding is also likely. Maybe Kiba overhears a conversation that he misinterprets. For instance, he might think Hinata is talking badly about him when in fact she is just discussing a general ninja problem. This could make him angry enough to hurt her, either with words or actions.
A good Naruto and Hinata hurt and comfort fanfiction should have a strong emotional core. It needs to really make the reader feel the pain that either Naruto or Hinata is going through. For example, if Naruto is the one in pain, the writer should describe his emotions in detail, like his feelings of loneliness or despair. Then, when it comes to the comfort part, it should be sincere. Hinata's actions to comfort Naruto should be believable and in - character, like using her gentle nature to soothe him.
Separation is also a common theme. Maybe Naruto has to leave the village for a long time, leaving Hinata behind. The distance and the lack of communication during this time can be a source of hurt for both of them. It often tests their relationship and loyalty.