In this 'naruto the juubi crossover mass harem fanfiction', the plot might revolve around Naruto being thrust into a situation where the Juubi's energy somehow creates a harem around him. It could start with Naruto's battle against the Juubi. After some kind of encounter with the Juubi's power, female characters from various places start to flock to him. They could be attracted by his new - found power related to the Juubi or some other mysterious connection. Naruto would then be in a position where he has to balance his ninja duties, understanding the Juubi, and dealing with his new - found relationships.
Definitely Hinata. Since she has feelings for Naruto in the original series, she could be a part of the harem. Sakura might also be there as she is an important female character. From the Juubi - related side, maybe a female form of one of the tailed beasts. Also, Tenten could be included as she is a strong female ninja. And perhaps a mysterious female character who has a special connection to the Juubi's power.
A cool plot might be that a mysterious figure uses the concept of a harem to manipulate Naruto in the context of the Juubi. The harem members could be from different villages and have different abilities related to the Juubi's energy. Naruto has to figure out who is behind this manipulation while also dealing with his growing feelings for the members of the harem. He could discover that there is a deeper connection between the Juubi and the creation of this harem situation, and that by solving this mystery, he can prevent a greater disaster.
Well, definitely Sakura. She has always been an important part of Naruto's life. Hinata is also a very possible choice because of her love for Naruto. In addition, if it's a crossover, there might be characters like Mikasa from Attack on Titan. She is a fierce fighter and might be drawn to Naruto's courage against the Juubi. There could also be characters from Naruto's own world like Ino, who has her own connection to Naruto and could be part of this mass harem.
In this kind of fanfiction, Naruto becoming the Juubi would completely change the Naruto universe. It would mean he has an insane amount of power. He could potentially reshape the world, bring peace in a way no one expected. His relationships with other characters like Sasuke would also be very different. Sasuke might be both in awe and a bit jealous of this new power Naruto has.
Obviously Naruto would be the main character. As for the harem, characters like Hinata could be part of it. She has always had feelings for Naruto. Sakura might also be involved as she has been an important part of Naruto's life. And perhaps some new female characters could be introduced, like a powerful kunoichi from a far - off land who senses Naruto's new power from the Juubi and is drawn to him.
Well, perhaps it could be about Naruto achieving a new level of power and attracting a group of female characters around him. Maybe they are drawn to his newfound connection with the Juubi's power and they form a sort of harem where they support him in his adventures and he has to navigate the complex relationships with each of them.
Naruto becoming the Juubi in a crossover fanfiction could lead to new alliances. Other characters from different series might see him as a valuable ally or a threat. For instance, characters from Bleach might approach Naruto differently. And Naruto himself might have to decide who he can trust with his new power.
Well, it could be about Naruto having to face a new and more powerful form of the Juubi. Maybe the Juubi has some new abilities or is being controlled by a new villain. Naruto would then have to gather his friends and allies, train harder, and discover new powers within himself to defeat this new threat.
A common theme is the clash of different power systems. Naruto has his chakra and various jutsu, while Inuyasha has his demon powers. When the Juubi is added into the mix, it creates a complex power dynamic.