One interesting plotline could be the exploration of new jutsus related to the Death God. Maybe the protagonist discovers a long - lost technique that the Death God once used. Another could be the interaction between Naruto and the spirit of the Death God, leading to some unforeseen consequences for the ninja world.
In a 'naruto death god fanfic', a possible plotline could be that the Death God is not as malevolent as it seems. Naruto, being the curious and kind - hearted ninja he is, tries to understand the Death God's true nature. This could lead to a situation where Naruto befriends the Death God or at least forms an alliance. As a result, they work together to bring balance to the afterlife and the living world, which is a very different take on the traditional Naruto story.
Perhaps in this fanfic, the 'death god' has a role in the chakra system. It could be that the 'death god' has some connection to the origin of chakra, and Naruto, being the main character, has to discover this connection. This could lead to Naruto having to master a new form of chakra control or power that is related to the 'death god', which would be a very interesting twist on the traditional Naruto story.
There might be a plotline where Naruto's new god - like status causes a rift among the ninja villages. Some may want to follow him, while others may oppose him, leading to political intrigue and conflict within the Naruto universe. This would be an interesting exploration of power dynamics and loyalty. Also, his relationship with Sasuke could take on a whole new dimension as Sasuke might struggle with Naruto's new - found power and his own place in the world.
One interesting plotline could be Naruto having to team up with unexpected allies in the death race. Maybe he has to work with former enemies to survive the dangerous challenges of the race.
Perhaps a plot where Naruto makes a deal with the Death Reaper to save his friends. He has to go on a dangerous quest in the afterlife or something like that. It could involve facing his own fears and the dark secrets of the ninja world.
One possible plotline could be how the characters in Naruto deal with the sudden outbreak of a Black Death - like disease. Maybe Naruto himself tries to find a cure using his shadow clones to search far and wide.
One possible plotline could be the Naruto character obtaining dragon god powers and how it changes his relationships. For example, his friends might be in awe or a bit scared at first. Another could be Naruto using these new powers to face tougher enemies like a new and more powerful Akatsuki group.
Well, one possible plotline could be Naruto's discovery of his new wolf god powers. Maybe he starts to have a deeper connection with nature and can communicate with wolves. He could use these powers to protect the village in unique ways, like summoning wolf packs to aid in battles.
One interesting plotline could be Naruto's journey to master wind-based jutsus at an extraordinary level, surpassing even his normal limits in the original series. He might discover new wind techniques that give him an edge in battles against powerful foes.
In some fanfictions, the heartless god could be from another dimension and has come to the Naruto world seeking something. This could set off a chain of events where the characters need to figure out the god's motives and stop it from achieving its goals. It might also introduce new types of jutsu or powers that are unique to this 'heartless god' and the dimension it comes from.
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.