Naruto's character development in the 'naruto has three bijuu fanfiction' could be quite complex. With three bijuu, his chakra reserves would be off the charts. This could lead to him being able to master new jutsu more quickly. Emotionally, he might struggle with the additional voices in his head from the bijuu. He could start to see the world from different perspectives, that of the bijuu, which could make him more empathetic towards enemies. Also, his leadership skills could be enhanced as he has more power to protect those he cares about and the entire ninja world.
Naruto's character develops by becoming more empathetic. He starts to understand the pain and loneliness of the Bijuu. This makes him less impulsive and more strategic in his approach to saving them. He also grows in terms of his leadership skills as he has to convince the Bijuu to follow him.
Naruto's character development in this type of fanfiction often involves becoming more mature. With the power of the Bijuu, he has greater responsibilities. He realizes that his actions now have a much bigger impact. He may also become more confident, as the Bijuu's power gives him an edge in battles. But at the same time, he has to be careful not to let the power corrupt him.
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.
His character would likely develop a sense of greater responsibility. With all that power from the bijuu, he knows he has to use it for good. He might become more serious and less of the carefree Naruto we know at first. He'd also grow in terms of his self - confidence, knowing he has such incredible strength.
Naruto would likely be more confident. With the bijuu by his side from the start, he wouldn't have to face the same level of loneliness and self - doubt. His character might be more assertive and less impulsive as he'd have the wisdom of the bijuu to guide him.
His power becomes extremely overwhelming. With all nine bijuu, Naruto gains access to an insane amount of chakra. He can perform massive jutsu without much strain. For example, his Rasengan could potentially be magnified to a scale that could destroy large areas with ease. Also, his physical abilities like strength and speed would be enhanced to superhuman levels due to the boost from the bijuu's power.
Well, it makes Naruto extremely powerful. He becomes like a force that no one can easily oppose. His chakra level skyrockets, and he can use the unique abilities of each bijuu. This changes the power balance as he can now handle threats that were previously too difficult, like taking on powerful villains single - handedly.
Naruto may become more cautious. With the curse mark, he realizes he has a power that can be dangerous. So he becomes more careful about his actions, not wanting to accidentally harm others with the mark's power.
Naruto might develop more confidence in himself. With the new gun bloodline ability, he realizes he has an edge in battles, which boosts his self - assurance.
Naruto's character could become more complex. He might struggle with the new power and the responsibility that comes with it. There could be moments where he fears losing control, which would add a new layer of depth to his character.