It's possible that some new characters are introduced in this fanfiction. They could be powerful underworld figures that Naruto has to deal with. These characters could have their own motives and backstories, and they would interact with Naruto in various ways, either trying to ally with him or overthrow him as the king of the underworld.
Well, it could be about Naruto ruling the underworld with his unique ninja skills. Maybe he uses shadow clones to manage different aspects of the underworld, like keeping the peace among different criminal gangs or uncovering dark secrets.
The following were some recommendations for novels that were similar to the King of the Underworld: " Don't Run, Hades "," The Concubine of the Underworld "," Hades in Power: A Dainty Wife Can't Escape "," Hades Chases His Wife: The Useless Second Miss of the Underworld "," The Snake of Hades "," The Strongest Killing God of the Underworld "," The King of the Seven Realms "," The Heart of Hades "," The Emperor of the Underworld Surrenders, the Concubine of the Underworld "," The Concubine of the Underworld ", etc.
The Underworld King of Prison was a fantasy novel written by Ye Xingyue. The novel told the story of a young man who transmigrated to another world and became the Hell King. In this world, there were all kinds of demons and ghosts, and the young man needed to use his power of Yama to protect the peace of the human world. The novel's plot was full of ups and downs, and it was full of thrilling scenes. It was deeply loved by readers.
While waiting for the TV series, he could also click on the link below to read the classic original work of " The Legend of Mortal Cultivation "!
One common theme is the exploration of a new world. The underworld in Naruto fanfiction is often a mysterious and dangerous place. So, Naruto has to explore it, learn its secrets, and find his place. Redemption can also be a theme. Sometimes Naruto tries to redeem characters from the underworld or even the underworld as a whole. And of course, friendship. He makes new friends in the underworld, which is different from his Konoha friends, and these relationships help him in his adventures.
In some fanfictions, there might be Naruto - related shops near areas that could be considered 'underworld - like'. However, it really depends on the creativity of the fanfiction author. Some might create such unique settings for the sake of plot twists or to introduce interesting new elements into the Naruto universe within the fan - made story.
This question is difficult to answer because I don't know what kind of novel you want. If you can provide more information such as the genre, theme, plot, etc., I will try my best to provide you with more helpful answers.
Maybe through a series of unexpected magical events. For instance, he could accidentally stumble upon a powerful ancient magic in the Forbidden Forest that has a connection to the underworld. This magic could bind him to the underworld in a way that gives him the position of king. Or perhaps he is tricked by a dark wizard who wants to get rid of him by sending him to the underworld, but instead, he ends up ruling it due to his natural leadership skills and the respect he gains from the underworld creatures.
The 'king of the underworld story' might be about a person who has ascended to the top in the underworld hierarchy. He may have started from humble beginnings, perhaps as a small - time criminal, and through a series of events, including making strategic alliances and eliminating his enemies, he becomes the king. The story could also be about the moral and ethical dilemmas he faces, if any, as he wields so much power in a world filled with vice and illegal activities.
I'm not sure if it's a widely popular novel. It might be a relatively niche or new release that not everyone has heard of. There could be a dedicated fan base for it among certain readers who are into underworld - themed or character - driven stories.