One way Naruto could survive is by using his Jinchuriki powers. Even in a tortured state, he might be able to draw on the power of the Nine - Tails to heal himself or resist some of the more severe forms of torture. Also, his training with Jiraiya and others has made him physically and mentally tough. He could use the skills he learned, like the Rasengan, in a defensive way if the torturers get too close. His memories of his friends and the promises he made to them would act as a psychological shield against the continuous pain.
One possible plot could be that Naruto is captured by a powerful and sadistic enemy. This enemy might use various forms of torture to try and break Naruto's spirit, perhaps to extract information about Konoha. Another plot could involve Naruto being tortured as a result of a false accusation within his own village, and he has to endure years of this while trying to prove his innocence.
Naruto might resist through his strong willpower. He has always been determined, and this would not change even under torture. He could keep thinking about his friends in the Leaf Village and his goal of becoming Hokage, which gives him the strength to endure.
One common trope could be the rescue mission. After Naruto is kidnapped and tortured, his friends or allies would likely embark on a dangerous rescue mission. Another might be the transformation of Naruto's character. The torture could potentially lead to him becoming more jaded or having a new perspective on life. Also, there could be the trope of the villain's motives. The kidnapper might have some convoluted reason for targeting Naruto, like trying to gain power through his unique abilities or to send a message to the Hidden Leaf Village.
Naruto could develop into a more vengeful character at first. The continuous torture by the villagers might make him angry and want to get back at them. But as the story progresses, he might realize that revenge is not the answer and instead focus on making the village a better place for everyone, including himself.
One possible plot could be Naruto finding a way to overcome the hatred of the villagers through his own strength and determination. Maybe he starts to show his true power and gradually makes the villagers realize their wrongdoings.
Well, perhaps in the fanfic, Orochimaru tortures Naruto as a form of revenge against the Leaf Village. He might use his various snake - related jutsu to cause pain and harm to Naruto. For example, he could make snakes constrict Naruto, slowly squeezing the life out of him while also injecting him with some sort of venom that causes excruciating pain. And all this while, Naruto is trying to find a way to break free and defeat Orochimaru, relying on his inner strength and the memories of his friends and his training.
A plot like Naruto being kidnapped and tortured in a fanfic can really divide the fandom. On one hand, it might attract those who are interested in exploring the psychological and emotional depths that such a situation could bring out in the character. But on the other hand, many traditional fans who are used to the more heroic and upbeat Naruto stories might find it too much to handle. It also might make new fans who stumble upon it have a warped view of what the Naruto franchise is really about.
No, it's not that common. Most fanfics tend to focus on more positive aspects like romance, friendship, or adventure. 'Being tortured fanfic' is a rather niche and often more extreme form of fan - created writing.
'Angel tortured fanfic' is likely a fan - written piece. In this kind of fanfic, the writer might be interested in exploring the vulnerability of an angel. They could be using the idea of torture to subvert the common perception of angels as powerful and invincible. It could also be a way to introduce complex moral and ethical questions within the framework of the fan - created story, such as whether it is justifiable to torture an otherworldly being, and how the angel might respond in ways that are both human - like and yet still retain their angelic essence.