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.
Well, a great plot point could be Naruto's discovery of a hidden power or secret within the Blood Prison. It could be something that has been locked away for ages and Naruto, with his unique nature, is the one to find it. Also, the idea of Naruto trying to reform the prison system from the inside could be really interesting. He might start small, like helping individual prisoners, and then aim for bigger changes.
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.
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.
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.
One interesting plot twist could be that Naruto discovers a hidden power within the Blood Prison that is related to an ancient clan. This power gives him an edge in battles and also helps him to uncover secrets about the prison's origin.
Often, the exploration of Konan's unique paper - based jutsu is an interesting plot point. In many fanfics, she uses it in creative ways in battles alongside Naruto. For example, in some, she creates paper constructs to help Naruto with his training. Another is the development of their relationship. It could start as mutual respect and grow into a deep friendship or something more, like in 'Naruto and Konan: Unlikely Love' where they fall in love over the course of their adventures.
A possible interesting plot point is Naruto having to adapt his chakra control in the Martian atmosphere. Since Mars has different conditions than Earth, his jutsu might work differently. Another could be Naruto encountering Martian life forms and having to communicate or fight them using his ninja skills.
A really interesting plot point in 'Naruto' drunk fanfic is the exploration of the character's emotions. When drunk, Naruto might show his insecurities more openly. He could start talking about his feelings towards Sasuke in a more raw and unfiltered way. This can create some really emotional and deep moments in the fanfic, as his friends listen and support him, or sometimes are shocked by what he reveals.
Another plot point might be Lucoa sharing her dragon - related knowledge with the ninja. This could lead to new jutsu being created or new ways of thinking about power in the Naruto universe. For example, she might teach about dragon - like breathing techniques that could be incorporated into ninja training.
One idea could be the main character having to protect the harem members within the dangerous Blood Prison setting. Maybe there are secrets about the prison that only the harem members know, and they rely on the main character to uncover them while fending off other threats.
One idea could be exploring a character's backstory who was wrongly imprisoned in the Blood Prison. For example, a shinobi who was framed by a powerful enemy and has to prove their innocence while dealing with the harsh conditions and dangerous inmates in the prison.