It could be an ancient sage. In Naruto lore, there are sages who have had a great influence on the world. An ancient sage could be the one who created or fathered the bijuu. Maybe he had some great power and knowledge that allowed him to bring the bijuu into existence.
Power and control is another theme. Isobu is a powerful tailed beast, so the fanfic may explore how Naruto deals with this power. Whether it's about Naruto learning to control Isobu's power or the two of them finding a balance in their combined strength.
Another theme is friendship. Despite Isobu being a tailed beast, in fanfiction, a bond of friendship can develop between Naruto and Isobu. They learn to trust each other and work towards common goals, like protecting the ninja world. This is seen in several popular fanfictions where their friendship is the central focus that drives the story forward.
One common theme is friendship. Despite their differences, Naruto and Isobu develop a strong friendship in many fanfictions. Another theme is power. How they combine their powers or how Naruto helps Isobu control his power better.
In Naruto has Isobu fanfiction, it's interesting because it can explore different scenarios. Naruto is known for his ability to befriend and understand others, even those considered monsters. Isobu, being a tailed beast, has a complex backstory and personality. Fanfiction can delve into how Naruto might interact with Isobu on a deeper level, perhaps helping Isobu in ways that weren't shown in the original series. It can also create new adventures where their combined powers are used in creative ways, like facing new threats together or exploring uncharted areas in the Naruto world.
In 'fem bijuu are possessive of naruto fanfiction', Kurama is likely to be a very prominent fem bijuu. Given her power and the fact that she has been inside Naruto for a long time, her possessiveness can really shape the story. Additionally, Matatabi, the Two - Tailed Cat, could also be a notable fem bijuu. Her feline nature might add an interesting layer to her possessiveness towards Naruto, perhaps making her more sly and protective in a different way compared to Kurama.
In many Naruto fanfictions, if Naruto has three bijuu, they could be the Nine - Tails (Kurama) which he already has in the original series, perhaps the Eight - Tails (Gyuki) as it has a connection with Naruto's world and Akatsuki's hunt for the bijuu. And another could be the Three - Tails (Isobu). However, it really depends on the specific plot and creative direction of the fanfiction.
In fanfiction, if Naruto is half - bijuu, it could mean he has enhanced physical abilities. For example, he might have greater strength and speed like a full - bijuu. His chakra reserves could also be much larger, allowing him to perform more powerful jutsu for longer periods.
One possible plotline could be Naruto struggling to come to terms with his half - bijuu nature while also dealing with his relationship with the fem bijuu. Maybe there are other characters who are either afraid or in awe of his unique state, leading to various conflicts.
It could be Shukaku. Since Shukaku was one of the first bijuu introduced in the series and has a sand - based power, it would be an interesting addition to Naruto's arsenal. Naruto's positive and energetic personality could also have an impact on Shukaku's usually grumpy and solitary nature.