Well, at first, Naruto might seem like he's just having fun with the 'mask of idiocy'. But as the story progresses, he could start to use it more strategically. This would force him to think on his feet and adapt to different situations quickly. Through this, his confidence might grow, not just in his combat abilities but also in his ability to outwit his opponents. His relationships with his friends could also evolve. They might start to see a different side of him, and Naruto would have to learn how to handle their reactions. Overall, his character would become more complex and multifaceted in this fanfic.
Perhaps a plot point could be Naruto's relationships changing because of this mask. His friends might initially be confused or even a bit annoyed by his 'idiocy', but as they discover the truth, it deepens their bond. Also, his enemies might not take him seriously until it's too late, which could lead to some epic battles where he turns the tables.
Maybe it was Jiraiya. Jiraiya was a very important figure in Naruto's life. He could have given Naruto the mask as part of a training exercise. He might have thought that wearing a mask would force Naruto to rely more on his intelligence rather than his brute strength in certain situations.
Perhaps Naruto wears the mask as a symbol of a new, more strategic side of himself. He could be using it to intimidate his opponents in battle. Since he's smart in this fanfic, he might have realized that a mysterious appearance can give him an edge. He could be using the mask to play mind games with his enemies, making them wonder who he really is and what his true capabilities are.
One possible plot could be that Naruto wears a mask to hide his identity while on a secret mission in another village. He might be gathering intelligence about a new threat that could endanger the Hidden Leaf. While wearing the mask, he has to interact with the locals without giving away his true self, leading to some comical and tense situations.
One possible reason could be for disguise. Maybe he is on a secret mission and doesn't want to be recognized easily. In the Naruto world, there are many dangerous foes, and wearing a face mask can help him blend in or hide his identity from those who might be targeting him.
Naruto would likely become more studious. Instead of just relying on his natural energy and willpower, he'd have to spend time in labs and studying books. His impulsiveness might decrease as he learns the importance of precision in scientific work.
In the 'naruto omnipresense fanfic', Naruto's character development may also involve a new level of self - awareness. Being omnipresent makes him see himself from different perspectives. He realizes how his actions affect not only those directly in front of him but also those in far - flung corners of the ninja world. This new - found self - knowledge could lead to him making more calculated and wiser decisions in various situations.
Well, obviously, the addition of the face mask gives him a more mysterious look. His usually open and friendly face is partly hidden, which might make others view him with more caution or curiosity.
Another possibility is that Naruto wears the mask as a tribute to Kakashi after a significant event. It could be that Kakashi sacrifices himself to save Naruto and the village. So, Naruto dons the mask to carry on Kakashi's legacy and to always remember the lessons he learned from him.
Naruto's character development in a 'naruto adopted by tsunade fanfic' would be quite significant. He would first of all feel a sense of belonging that he had always craved. This newfound family connection would make him more stable emotionally. Tsunade's medical knowledge would inspire him to look at the ninja world from a different perspective. He might start to focus on ways to save lives as well as defeat enemies. His social skills could improve too, as he would interact with different people in Tsunade's circle. For example, he could learn diplomacy from dealing with the village elders. Overall, Naruto would transform into a more well - rounded and mature ninja.