Perhaps CC could be from a hidden village that was previously unknown in the Naruto world. She might have been sent on a mission to Konoha to learn about their ninja ways. Along the way, she forms unexpected friendships with Naruto and his friends and has to use her own skills to help them out in various battles against the Akatsuki.
In the fanfic, CC could be a sort of experiment by Orochimaru. He tries to combine her with some sort of ninja - related jutsu or power. But instead of being controlled by Orochimaru, CC manages to break free and uses her new - found abilities to fight against Orochimaru's evil plans. She could also end up teaching some of the younger ninjas in Konoha about her unique powers.
One possible plot could be that Blake, with her unique skills from her original world, tries to adapt to the ninja world of Naruto. Maybe she joins a ninja team and uses her acrobatic and shadow - like abilities to help in missions. For example, she could use her skills to infiltrate enemy bases undetected, much like how ninjas in Naruto use their stealth techniques.
One possible plot could be Naruto being transported to the Claymore world. He might initially struggle to understand the unique rules and the existence of Yoma. But with his ninja skills and never - give - up attitude, he could start training Claymore warriors in new combat techniques, like his shadow clone jutsu. This would change the power dynamics in the Claymore world as they now have a new way to fight Yoma and Awakened Beings.
One possible plot could be that Naruto finds himself in the world of Kenichi and decides to train at the Ryozanpaku dojo. He could bring his unique ninja skills and chakra techniques, which would amaze the masters there. Maybe he'd get into friendly sparring matches with the disciples, teaching them some of his ninja tricks in return for learning their martial arts. This would create a lot of comical and action - packed moments as Naruto's high - energy ninja style clashes with the more traditional martial arts of the Kenichi universe.
A possible interesting plot could be Naruto discovers a hidden ninja village where parkour is the key to unlocking ancient secrets. He has to master new parkour skills to traverse the village's dangerous terrains filled with traps and challenges, all while facing off against a rival ninja group who also wants the secrets.
One possible plot could be Naruto being summoned into the DxD world by some sort of magic accident. He might initially be confused but quickly adapt his ninja skills to the new environment. He could team up with some of the DxD characters to face a common enemy, like a powerful fallen angel or a rogue devil. His Rasengan and shadow clone techniques would be quite unique in this world.
One interesting plot could be Naruto entering a cooking competition in the Hidden Leaf Village. He might use his ninja skills, like speed and precision, to prepare amazing dishes. For example, he could use his shadow clone jutsu to chop ingredients really fast. His unique style of cooking, influenced by his ninja life, would surprise the judges and the other contestants.
One possible plot could be that Naruto is on a mission in an ancient tomb and accidentally awakens a mummy. The mummy, instead of being hostile, has some unique chakra that Naruto is curious about. They end up forming an unlikely alliance to face a common enemy that is threatening both the ninja world and the mummy's resting place.
In a 'naruto impmon fanfic', the plot could revolve around Impmon being a spirit guide of sorts to Naruto. Impmon has a different way of looking at things due to his digital world origin. He could guide Naruto through some difficult moral decisions. For instance, when Naruto is faced with the choice of using a powerful but dangerous jutsu that could harm innocent people, Impmon could share his experiences from the digital world where there were similar choices about using powerful digital powers that had consequences. This could lead to Naruto finding a new and better way to handle the situation.
Well, perhaps Kirby is seen as a sort of spirit animal in the Naruto fanfic. The ninjas believe he has some sort of special chakra or power. Kirby teams up with Naruto, and together they go on adventures. Kirby's ability to float and move quickly could be useful in battles and in traversing the various terrains in the Naruto world. He could also use his inhaling power to clear away debris or obstacles during rescue missions.
One possible plot could be that Naruto somehow gets transported to the Pokemon world. There, he meets a group of Pokegirls. They initially misunderstand him as a threat but later realize he can be a great ally. Together, they embark on a journey to stop an evil organization that is trying to capture all the Pokegirls for their own malicious purposes. Naruto uses his ninja skills like shadow clone jutsu to help in battles and outwit the bad guys.