Well, a possible plotline might involve Naruto being possessed by the essence of the Shredder. As a result, he starts to act more like the Shredder in his own world. He could form his own group of followers similar to the Foot Clan and try to take over the ninja villages. His friends would then have to find a way to break the possession and bring back the old Naruto. Or, perhaps Naruto willingly takes on the Shredder role to gain new powers to fight a greater evil in his world, but he has to struggle with the darker aspects of the Shredder's personality.
One interesting Naruto Shredder fanfiction could be about a crossover where Naruto's world collides with the Teenage Mutant Ninja Turtles' universe and they have to team up against a common enemy. Maybe the Shredder is after some powerful ninja art from Naruto's world.
One possible plotline could be a situation where Naruto is split into two versions of himself, maybe by some sort of jutsu gone wrong. And as they get to know each other better, they end up kissing as a way to reunite or merge back into one. Another could be in a dream sequence where Naruto is exploring his self - worth and in this dream, he kisses his own reflection which then turns into another version of himself.
I'm not entirely sure as I haven't read this specific fanfiction. But it might be a creative story that combines elements from Naruto and the idea of Naruto being the son of Shredder. It could be a wild crossover with new adventures, powers, and relationships for Naruto.
It could center around a weapon or a jutsu named 'demon shredder' in the Naruto universe. In fanfiction, the author might explore how this 'demon shredder' thing affects the Naruto world. It could change the power balance, or it could be a tool for a hero to save the day from some demon - related threat.
One possible plotline could be that Naruto discovers he is a prince from a hidden or lost kingdom. This could lead to him having to learn royal etiquette while still trying to maintain his ninja ways. Another plotline might be that his status as a prince makes him a target, and he has to protect his new - found royalty while also protecting the Hidden Leaf Village.
One possible plotline could be Naruto having to adapt to his new - found disability. He might struggle with his self - worth as a ninja, since being crippled could limit his physical abilities. He could then focus on developing other skills, like his strategic thinking or his ability to train others.
One possible plotline could be that Naruto is constantly rejected by the village he is trying to protect. This betrayal and lack of acceptance could gradually turn him dark. For example, if the villagers start to blame him for every bad thing that happens, even when it's not his fault. Another plotline might involve Naruto losing someone very close to him, like Sasuke, in a way that he blames the shinobi world for. This could lead to him deciding to take revenge on the world and turn to darker methods of achieving his goals. Maybe he starts to use forbidden jutsu without hesitation, seeing it as a means to an end.
A possible plotline could be that Calypso, with her alluring powers, tries to tempt Naruto away from his path of becoming Hokage. But Naruto, with his strong will, resists and instead tries to show Calypso the importance of having a noble goal. Another plotline might be that Naruto and Calypso team up to fight a powerful entity that is causing chaos in both their worlds.
One possible plotline could be Naruto using his new position as a daimyo to bring about political reform in the ninja world. He might try to end the long - standing feuds between different ninja villages by leveraging his power.
One possible plotline could be that Naruto dies during a great battle, like against Kaguya. But his spirit remains because he has some unfulfilled desires, like seeing the village fully at peace. So, as a ghost, he tries to influence the living to achieve that peace.