There are indeed alternatives. Some fanfics might explore the relationships between Naruto and other characters in the Blood Prison context. For example, they could depict how Naruto interacts with the guards or other prisoners in a way that promotes the values of the Naruto universe, such as perseverance, loyalty, and friendship. It's important to avoid the offensive ones and seek out the positive fan - created stories.
Might be one of the powerful guards who has a grudge against Naruto for some reason. Maybe he believes Naruto is a threat to the order in the prison and tries to get rid of him secretly.
I haven't read this particular fanfic in detail. But generally, in fanfics about Naruto in the Blood Prison, his changes could involve his growth in power, his relationships with other characters in that unique and often dangerous setting. Maybe he discovers new jutsu or overcomes some inner demons while locked up there.
Another plot could involve Naruto having to deal with a hidden power within the Blood Prison that is starting to corrupt the inmates and guards alike. He has to find the source and stop it. For example, there could be an ancient curse that was placed on the prison long ago and is now awakening. Naruto, with his strong will, tries to resist the curse's influence while also finding a way to break it for everyone else.
Well, in such a fanfic, Naruto's child could be a key element in changing the situation in the Blood Prison. Since Naruto has a child, he might be more determined to break free from the prison's control. The child could also be a target for some evil forces in the prison who want to use the child's potential for their own purposes. And Naruto would do anything to prevent that, leading to intense battles and emotional moments.
The unique setting of the blood prison. It's a dark and dangerous place, very different from the usual Naruto settings. Fans like to see how their favorite characters, like Naruto, will adapt and survive in such a hostile environment.
Maybe he discovers some dark secrets in the Blood Prison. These secrets could be about the corruption of the ninja world or some hidden evils related to powerful people. This new knowledge might make him lose faith in the system he once believed in, leading to his transformation into a darker version of himself.
One great 'naruto blood prison fanfic' is 'The Escape from Blood Prison'. It has an exciting plot where Naruto has to use his wits and newfound powers to break free from the prison's strict control. Another is 'Blood Prison Redemption' which focuses on Naruto's journey to redeem himself in the eyes of the prison guards and inmates while uncovering a dark conspiracy within the prison.
One interesting plot point could be Naruto's struggle to maintain his positive outlook in such a dark place. The Blood Prison is known for its harshness, and seeing how Naruto stays true to himself would be engaging. Another could be his interactions with the other inmates. He might form unexpected alliances or rivalries.