Sasuke could also be important. He might be initially skeptical of Naruto's Sage Chakra but later see its potential and even collaborate with Naruto. Also, the Great Toad Sage is a key character. It could give Naruto new prophecies related to his Sage Chakra, leading him to new adventures and challenges. Tsunade could also play a role, perhaps in helping Naruto understand the medical aspects of Sage Chakra and how it affects his body.
Sasuke could play an important role. In different universes, he might have different allegiances or powers. For example, in a universe where the Uchiha clan was never massacred, Sasuke could be a powerful leader. Kakashi is also a great candidate. His knowledge and skills could be very useful in strange universes. And Jiraiya, he could be the one guiding Naruto through the different universes, sharing his wisdom about the various changes and how to adapt.
Sakura could play an important role. She might be more concerned about Naruto's well - being after such a tough fight. She could also use her medical skills to help in the rebuilding of Konoha. Kakashi, too, could be significant. He could guide Naruto in understanding his new powers better and also contribute to the village's security plans.
Sakura could have a different relationship with Naruto in this fanfiction. Since Tsunade trained her, there could be more of a family - like bond between Sakura and Naruto. Also, characters like Sasuke would still be relevant. His rivalry with Naruto could be affected by Naruto's new family situation. Additionally, Shizune, Tsunade's assistant, could be involved, perhaps acting as an older sister figure to Naruto.
Neville could play an interesting role. Maybe he could be the one who discovers a new magical plant that is needed for a potion to cure an illness that Ginny or Harry contracts during their marriage. Luna could also be involved. She might come to them with some strange but useful prophecies that help them in a difficult situation, like dealing with a dark wizard who has a grudge against Harry even after the war is over.
Ra's al Ghul is a character that would be significant in a batman arrow crossover fanfiction. As a long - standing adversary of Batman and a figure with a large influence in the criminal underworld, his presence could add a lot of depth to the story. He might be involved in a plot that spans both Gotham and Star City, pulling the strings from behind the scenes. Additionally, Black Canary from Arrow could be important. Her martial arts skills and sonic scream ability would make her a formidable ally in a fight against the combined threats that a crossover would bring.
Hermione would definitely be important. She could use her extensive knowledge to help Harry understand his creature inheritance. For example, she might research ancient texts to find out more about the origin of his inherited traits.
Well, Naruto is the key figure in these fanfictions. But characters like Tsunade can't be ignored. As the Hokage, she may give Naruto special tasks or resources that aid in his rise. Rock Lee is also common. His dedication to training and his unique fighting style can inspire Naruto. And Neji, before his death in the original series, could be a character who, in fanfiction, has a change of heart and helps Naruto understand more about the Hyuga clan's secrets, which in turn helps Naruto gain more power and influence.
Sasuke could be another key character. There could be a plot where Sasuke is initially skeptical about Naruto's new chakra sage abilities but then comes to see their value in protecting the shinobi world. And Jiraiya, as Naruto's former mentor, might appear in flashbacks or even in some spiritual form to give Naruto advice on his chakra sage journey.
Obviously Naruto himself is the central character. His growth and new abilities would be the focus. Sasuke could also be important. He might have his own development and his relationship with Naruto could be explored further, whether they are friends or rivals again.
Naruto himself is obviously a central character. His growth and decisions will shape the story. Hinata could also be important as her relationship with Naruto might develop further. Shikamaru, being one of Naruto's smartest friends, could play a crucial role in planning for Konoha's future and strategizing against potential threats.