Naruto might save Supergirl with his ability to make friends and allies. He could gather other superheroes or powerful beings from his world or hers and form an alliance to rescue Supergirl if she is captured. For example, he could convince Batman or some of the other Justice League members to work together with his ninja friends from Konoha.
Naruto could save Supergirl by using his speed. His ninja training has made him extremely fast, and he could use this speed to quickly move Supergirl out of harm's way when she is in danger, like when she is facing a powerful energy blast from an enemy.
Naruto could save Anakin with his shadow clones. He could send a bunch of clones to distract Anakin's enemies or to create diversions while he tries to get through to Anakin. This would give him the time and space to have a heart - to - heart conversation with Anakin and try to sway him from the dark side.
Hinata could be one of the main characters. Since she has deep feelings for Naruto in the Naruto universe, she might follow him into Supergirl's world. Also, Kara's friend Lena Luthor could be involved. She is a complex character and her interaction with Naruto could add an interesting dynamic to the story.
Naruto could save Fairy Tail in fanfiction through his strong will and never - give - up attitude. He has faced numerous challenges in his own world and emerged victorious. In the Fairy Tail universe, he could inspire the members of the guild to keep fighting even when all seems lost. He might teach them some of his ninja techniques which could give them an edge in battles. His experience in dealing with powerful and dangerous opponents would be invaluable in protecting Fairy Tail.
One way to make it interesting is by exploring the cultural clashes. Naruto comes from a world of ninjas with a strict code and honor system, while Supergirl is from a world of superheroes with different values. The pregnancy could be a catalyst for them to find common ground. Another aspect could be the power combination of their child. What kind of abilities would it inherit? This mystery could keep readers engaged.
Perhaps in this fanfiction, Supergirl and Naruto meet during a crisis that involves both their universes. Supergirl's super strength and flight could complement Naruto's speed and stealth. They could start off as rivals, each thinking their way of doing things is better. But as they face challenges together, they would come to respect each other. Naruto could use his shadow clone jutsu to create diversions while Supergirl uses her heat vision to take out enemies. Eventually, they become friends and vow to protect both their worlds.
Madara Uchiha could be a great antagonist. His powerful Sharingan abilities and his grand plans for the Naruto world would put him at odds with Supergirl. He might see her as a threat to his control and try to manipulate or defeat her. Another option could be Kaguya Otsutsuki. Her god - like powers and desire to reshape the world would clash with Supergirl's values and her attempts to protect the people of the Naruto universe.
Well, one possible plot could be that Supergirl accidentally lands in the Naruto universe. Naruto, being the curious and friendly ninja he is, approaches her. They initially have a misunderstanding due to their different worlds and powers, but then they realize they can learn from each other. Supergirl could teach Naruto about her advanced technology from her world, while Naruto could show Supergirl the unique chakra - based powers and the ninja way of life.
A Naruto and Supergirl kiss fanfiction could start with some sort of interdimensional rift or magic that brings them together. Maybe Naruto is on a mission in his world and accidentally gets sucked into Supergirl's universe. They initially don't understand each other due to their different languages and cultures, but through non - verbal communication and a series of adventures together, they develop a connection. Eventually, in a moment of high emotion, like when they save each other from a powerful enemy, they share a kiss.
The fanfiction could start with Supergirl sensing an unusual energy signature, which turns out to be Naruto arriving in her universe. Naruto, being godlike, has an air of mystery around him. At first, Supergirl is cautious. However, as they interact, they find that they share a sense of justice. They could team up to protect the innocent in Supergirl's city. Naruto's skills in stealth and reconnaissance, combined with Supergirl's super senses, make them an unbeatable duo in preventing crimes. As the story progresses, they might face challenges from those who fear Naruto's power or are jealous of Supergirl's popularity. But through it all, their bond grows stronger.
It could be an evil ninja from Naruto's world who somehow gains Kryptonian - like powers. He becomes power - hungry and decides to take over both the Naruto world and Supergirl's world. His knowledge of ninja techniques combined with super strength and other abilities would make him a formidable foe.