A plot might involve Naruto's friends being targeted by the Hell Girl's system. For example, some of the villagers who once hated Naruto start to get cursed by others using the Hell Girl's services. Naruto then has to figure out how to break the curses and stop the Hell Girl's influence in the ninja world. He could try to use his understanding of friendship and forgiveness to counteract the revenge - based system of the Hell Girl.
Perhaps the Hell Girl enters the Naruto universe because there's a great imbalance of negative emotions. Naruto, being the positive force he is, tries to convince the Hell Girl that there are better ways to deal with these emotions than sending people to hell. He could show her the power of redemption and second chances in the ninja world, which might make the Hell Girl question her own mission.
One possible plot could be that Naruto accidentally summons the Hell Girl. Maybe he's in a situation where he's desperate to stop an enemy who's causing great harm but the normal ninja ways aren't working. The Hell Girl offers him a deal, but Naruto has to decide if the price is worth it. He could be torn between his ninja values of hard work and self - reliance and the quick fix the Hell Girl offers.
One possible plot could be that the elf girl is from a hidden elf village and she gets lost in the Ninja world. Naruto stumbles upon her while on a mission. He helps her find her way back home, and during their journey, they learn about each other's cultures. The elf girl could teach Naruto some of her magic, and Naruto could show her the power of ninja techniques.
Perhaps a plot where Power Girl ends up in the Naruto universe. She could initially be seen as a strange and powerful being. Naruto, being the friendly and curious person he is, befriends her. Together, they could work on a mission to stop a powerful rogue ninja who has obtained a dangerous and unknown power. Power Girl's super strength and flight could be combined with Naruto's ninjutsu in interesting ways during combat.
It could be someone who misuses the power of the Hell Girl. Maybe a rogue ninja who discovers the way to summon the Hell Girl and uses her to get rid of his enemies in the ninja world. He doesn't care about the consequences or the morality of it, and Naruto has to stop him from causing more chaos.
Well, it could be about Naruto and Power Girl teaming up to fight a common enemy. Maybe they meet in a strange dimension where their powers are both needed to defeat a powerful villain who is threatening to destroy both their worlds.
One possible plot could be that Naruto somehow ends up in the Batman universe and meets Batgirl. They team up to fight a common enemy, like a new villain who has the ability to steal chakra and use it in Gotham. Naruto teaches Batgirl some ninja techniques, and in return, she shows him the high - tech gadgets of Gotham.
In a 'Naruto sent to hell' fanfiction, it could be that Naruto is sent to hell as part of a test. The gods or some powerful entities want to see if he can bring hope and change to the damned souls in hell. So, Naruto starts to teach the souls in hell about friendship, perseverance and the ninja way. He tries to reform the place from within, facing many challenges along the way like powerful hell guards and the dark energy that tries to corrupt him.
Well, it could be about Naruto gaining the power to control the King of Hell. Maybe he makes a deal with it to save his friends. For example, he might offer his own life force in exchange for bringing Sasuke back from the brink of darkness.
Well, in this 'naruto raised in hell fanfiction', it could be that Naruto was sent to Hell by some dark force or accident. There, he might learn some unique and dark jutsu from the environment or the creatures in Hell. And he may use these new powers when he eventually returns to the normal ninja world. He would also have to deal with his own inner demons while in Hell.
One possible plot could be that Naruto discovers a hidden underworld within the ninja world which is known as the 'Hell'. And he becomes like a father figure to the lost souls there. Maybe he uses his own experiences of being an outcast and lonely to empathize with them, and tries to bring some form of order or redemption to this place of chaos.
Perhaps the story is centered around Naruto becoming the 'Lord of Hell'. He might use his newfound power and status to bring about changes in the hellish environment. He could try to reform the system there, like making it more just for the souls trapped, all while using his ninja skills in unexpected ways. For example, using shadow clones to manage different tasks in the vast expanse of hell.