Another plotline could be Naruto's transformation into a 'dark emperor' being a result of some external force or curse. He then has to find a way to break free from it while still maintaining his new - found power and authority. This could lead to some really emotional and action - packed moments in the fanfic.
Another plotline could be that the west is a place full of chaos and Naruto sees himself as the solution. He starts to build his own empire with his own set of laws and values. However, his methods might be controversial. He could be facing internal rebellions within his new domain as well as external threats from the other ninja villages who see him as a threat to the balance of power in the Naruto world. The story could be about his struggle to maintain his rule while also dealing with his own inner demons.
One possible plotline could be Dark Naruto's struggle with the Asura power within him. He might have to face inner demons and temptations that come with this power. For example, he could be constantly on the verge of losing control and harming those he cares about.
Well, sometimes in 'naruto vs dark naruto fanfiction', a cool plotline is when Dark Naruto has some new powers that Naruto has to figure out how to counter. For example, Dark Naruto might be able to control shadows in a way that Naruto has never seen before. Or perhaps Dark Naruto has allied himself with a powerful dark force from outside the ninja world. Naruto then has to not only battle his dark self but also this new threat.
In this kind of fanfic, there could be new and complex character relationships. For instance, Naruto's relationships with his friends like Sasuke and Sakura might be drastically different. Instead of the usual camaraderie, there could be conflict or power struggles. Also, the 'Dark Naruto Emperor of West' might have unique abilities that are not seen in the original Naruto series. This could lead to exciting battles and plot twists. Maybe he has a new form of chakra or a special jutsu that is born out of his dark nature. And all these elements combined can make the fanfic very interesting.
One interesting plotline could be the discovery of a new and powerful dark fire jutsu that only a select few can master. This jutsu might have unforeseen consequences on the ninja world, like disrupting the balance of power among the villages.
One interesting plotline could be the dark swordsman's origin. Maybe he was once a regular ninja who was betrayed and then turned to the dark side, finding power in the art of the sword. Another could be his interactions with the main Naruto characters. For example, his battles with Sasuke, where they both have different sword - based fighting styles, which could lead to some epic showdowns.
Perhaps she forms a unique bond with other female characters. For example, she might team up with Sakura in a different way, sharing more emotional and strategic moments. Since she is Dark Naruto, she could bring out a different side of Sakura as well. They could explore their own powers and how to use them to protect the village together.
One possible plotline could be the journey of the 'child of dark prophecy' to discover their true power. Maybe they start off in a small, unassuming village and as they grow, strange things start to happen around them. They could encounter various allies and enemies along the way, each with their own motives regarding the prophecy.
In 'rwby dark ruby fanfic', there might be a plotline where Ruby enters a parallel dark dimension. Here, she finds a distorted version of Remnant where all her friends are either gone or turned evil. She has to find a way to not only survive in this harsh new world but also find a way to restore the original Remnant. Along the way, she discovers secrets about her own powers and family that she never knew before, which are somehow linked to this dark dimension.
A possible plotline is a gender - bent Naruto having to prove herself in a male - dominated ninja society. She could form an all - female ninja team and take on missions that are typically thought to be for male - only teams. This would show her strength and determination in a different light compared to the original Naruto story.