Another fanfiction could be set in a post - apocalyptic world where the power of the Demon Fox Lord has been misused in Naruto's world, and it has some sort of ripple effect on Inuyasha's world. Inuyasha and Naruto, both having a connection to powerful spiritual forces, must find a way to restore balance. They could start off as enemies, misunderstanding each other's motives, but gradually come to realize they need to work together.
A more light - hearted fanfiction could involve a tournament. The Demon Fox Lord's power within Naruto makes him a formidable contender. Inuyasha, with his sword and demon - slaying skills, also enters the tournament. They meet during the competition and, instead of fighting right away, they are forced to team up for a series of challenges that require both their unique skills, like a maze that has both physical and spiritual traps.
One idea could be that Megan Fox is a new character introduced into the Naruto universe. Maybe she's a powerful kunoichi from a far - off land with unique jutsu abilities that are a blend of modern - day knowledge and ninja skills. For example, she could use her understanding of mechanics to create advanced ninja tools.
Naruto, being the host of the Demon Fox Lord, has a certain wild and unpredictable side to him. Inuyasha, being a half - demon, would likely be both intrigued and cautious around Naruto. He might see the power of the Demon Fox Lord as something similar to his own demon side, but also very different. They could initially clash because of their different personalities. Naruto is more optimistic and eager to make friends, while Inuyasha is more gruff and guarded. However, as they face challenges together, they would start to understand and respect each other.
One idea could be to have Inuyasha end up in the Young Justice universe through some sort of magical portal mishap. He could initially be seen as a threat due to his demon nature and his sword, Tessaiga. But then the Young Justice team realizes he's more of a lost soul and they try to help him get back home while also dealing with villains who want to use Inuyasha's power for their own gain.
A plot where the demon fox lord, instead of being a purely malevolent force, has his own code of ethics. He might decide to help Naruto train in a very unorthodox way, pushing him to his limits and beyond. This could be a story of growth not just for Naruto, but also for the demon fox lord as they interact in ways that no one expected.
A fanfic could also be about a group of ninja from Naruto being sent on a mission to Middle - earth to retrieve an artifact that is crucial for both worlds. They encounter the hobbits, elves, and dwarves along the way and have to navigate the different cultures and terrains while using their ninja abilities to overcome obstacles.
Another character could be Kakashi. He has always been Naruto's mentor, and in the 'naruto demon fox lord fanfiction', he might play a role in helping Naruto control or understand the demon fox lord better. He could also be involved in battles or negotiations related to the demon fox lord, given his experience and wisdom.
An idea could be that the fox demon gives Naruto a 'lemon - themed' trial. Naruto has to find and collect a set of lemon - colored orbs that are scattered across the ninja world. Each orb gives him a new power or knowledge related to controlling the fox demon better. Along the way, he meets various characters who either help or hinder him in this quest.
One idea could be to have characters from Naruto end up in the world of Danmachi. For example, Naruto himself could find his way into the dungeon and his ninja skills would be put to the test against the dungeon monsters. His shadow clone jutsu could be used in interesting ways, like sending clones into different dungeon levels to scout or fight. Another idea is to have the concept of chakra introduced into the Danmachi world. This could change the way adventurers fight and level up. Maybe some of the Naruto characters could train the Danmachi adventurers in new combat techniques.
One idea could be a crossover where Naruto is somehow transported to the Star Wars universe and meets Padme. Maybe he uses his ninja skills to protect her from the Sith.
Another concept is that Naruto is sent to Middle - earth. There, he could use his ninja skills and chakra powers. He and Gandalf could team up to fight Sauron. Naruto's ability to make friends and inspire others would be really useful in uniting the different races of Middle - earth against the common enemy.