Sasuke could also be a main character in such a fanfic. Maybe he is initially jealous of Naruto getting the chakra armor and there could be a rivalry between them as they both try to master the power it offers. And Sakura might also be involved, perhaps as the one who helps heal the wearer of the armor when they get injured during battles or training.
It really depends on the specific fanfic. But it could be Naruto himself, as he often has new abilities or storylines in fanfics. He might be the one to master the chakra chains in a unique way.
I'm not sure specifically as it's a fanfic, but it could include Naruto himself. He might have a special connection to the chakra paper in this story.
I'm not sure specifically who the main characters are in this fanfic without reading it. But it could be new characters that are introduced because of this special chakra concept, or it might focus on existing Naruto characters like Naruto himself or Sasuke, and how they interact with the special chakra.
It really depends on the specific fanfic. But it could be Naruto himself, as he's the central character in the original series. He might be the one to discover or interact with the chakra fruit in some significant way.
It depends on the specific fanfic. However, it could be Naruto himself, exploring new aspects of his relationship with nature chakra. Or perhaps a new character created by the fanfic author who has a special connection to nature chakra. Another possibility is Sasuke, as he could also be delving into the mysteries of nature chakra in the fanfic.
Often, Naruto himself would be a main character as he has a strong connection to chakra in general. He might be exploring and mastering the rikudou chakra in the fanfic.
One interesting concept could be the unique designs of the chakra armor. Maybe it has special abilities like enhanced speed or strength. For example, it might allow the wearer to perform jutsus more powerfully.
In some cases, the chakra armor can create a new hierarchy among the characters. Those with access to better or more advanced chakra armors may become the leaders or the most feared in the ninja clans. It can also lead to rivalries as different characters or groups vie for control over the most powerful armors. Moreover, it can change the balance of power between villages. A village that discovers a way to mass - produce powerful chakra armors could gain a huge advantage over its neighbors.
It's hard to say for sure without reading it. But if it follows the Naruto pattern, Naruto himself could be one of the main characters. He's often at the center of things in Naruto - related stories.
Sasuke could also be a main character. His Sharingan abilities could play a role in detecting or fighting the chakra monsters. Maybe he teams up with Naruto again to deal with this new threat.