The 'Naruto Clone of Superman' fanfic could explore how Naruto adapts to his new powers. He is used to relying on his ninja training and the Nine - Tails' chakra. But with Superman - like powers, his combat style would change completely. He could be faster than the speed of sound, which would make his rasengan attacks even more deadly. Also, the story could touch on how he balances his new identity with his old self. He still has his dreams of becoming Hokage, but now he has this whole new set of responsibilities that come with being like Superman.
Well, perhaps it could be about Naruto getting Superman - like powers. Maybe he could fly around Konoha like Superman soars over Metropolis. He might use his super strength to protect the village from threats that are too powerful for normal ninja skills.
One possibility could be that Naruto somehow gains Superman - like powers. Maybe through some strange scientific experiment or a magical encounter. He could then use his newfound abilities, like super strength and flight, in combination with his ninja skills. For example, he might use super speed to perform his shadow clone jutsu even faster, overwhelming his enemies in a way that was not possible before.
One idea could be that the clone has the powers of both Naruto and Superman. For example, it can use Naruto's shadow clone jutsu while also having Superman's super strength and flight. It could be a hero in a world where both Naruto - style ninjas and super - powered beings exist, fighting against a common enemy that threatens both worlds.
It could be Orochimaru. He's always been interested in power and new forms of jutsu. Seeing Naruto with Superman - like powers would make him want to either steal those powers for himself or find a way to use Naruto as a tool in his experiments.
A powerful dark wizard could be the main villain. He could be jealous of the clone's unique powers and want to steal them for himself. He might use dark magic to try and corrupt the clone or simply try to destroy it to prevent it from becoming too powerful.
One possible plot could be that Naruto's clone, while transformed into a black book, holds some sort of magical or mysterious power. Maybe the black book has the ability to record secrets of the ninja world, and Naruto's clone has to protect it from those who would misuse the knowledge. This could lead to a series of adventures where Naruto's clone, in the form of the black book, has to outwit enemies and also find a way to return to its normal form.
A possible main antagonist could be a powerful alien who sees Naruto as an abomination. This alien might come from Krypton and believe that Naruto, as a clone of Superman, is a perversion of their species' power. The alien would have all the typical Kryptonian powers but with a more malevolent intent. He would try to destroy Naruto and the Hidden Leaf Village, thinking that he is doing a service to the universe by eliminating this 'false' Superman.
One possible plot could be that Naruto is suddenly bestowed with Superman's powers. He has to hide it from his friends at first because he doesn't understand it. Then, as he starts to master these powers, he uses them to protect the Hidden Leaf Village from a new and powerful threat that normal ninja techniques can't handle.
In this fanfiction, perhaps Naruto as a Darkseid clone discovers new powers. Since Darkseid is a powerful being in the DC universe, Naruto could inherit some of that raw power. He might have to learn to control it, just like he learned to control his chakra. His friends in the Naruto world could be either afraid of him or try to help him come to terms with this new identity.
In a more complex scenario, the female clone could be a result of some experiment gone wrong. She has Naruto's memories of his loneliness and uses that as a way to justify her yandere actions. She thinks she is the only one who can truly understand Naruto and wants to keep him in a world where it's just the two of them. She might even try to make Naruto believe that his real friends are against him so that he depends only on her.
Naruto could use his Rasengan with Superman's strength. Imagine the power of a Rasengan thrown with Superman - level force. It would be extremely destructive.