One way to improve Percy's self - esteem could be through the support of his friends. In fanfiction, his friends could have a heart - to - heart talk with him, reminding him of his past achievements and strengths.
In fanfiction, Naruto could feel sick due to overusing his chakra. He often pushes himself to the limit in battles and training, and this excessive chakra use might take a toll on his body, making him feel ill.
One reason could be his status as a jinchuriki. People might be afraid of him because of the Nine - Tails inside him, so he feels unloved. Another reason is that he was an orphan, and without his parents around, he may have felt like he didn't have that family love that others had.
In many fanfictions, Naruto might start by training harder. He throws himself into his ninja training as a way to distract himself from the loneliness. It gives him a sense of purpose and also helps him become stronger.
The plot could involve Minato being brought back to life or having a vision where he steps into Naruto's shoes. He might feel Naruto's pain from constantly being underestimated because of his status as a Jinchuriki. This could lead to Minato trying to find ways to comfort Naruto from afar, or even influencing the events around Naruto in a supernatural way.
Sakura would probably be the first to jump into action. As a medical ninja, she would immediately start examining Naruto to figure out what's wrong. She might be worried but also determined to find a cure.
Some fanfictions might explore the theme of Naruto being used and then discarded. For instance, the village might use his power to fight a certain enemy and then once the threat is over, they try to push him aside. He may also face discrimination based on his status as a jinchuriki. People might fear him and keep their distance, which makes him feel lonely and unwanted. There could also be a theme where Naruto tries to fit into a new group or community but is constantly rejected because of his past or his own unique abilities.
This type of fanfiction can make Naruto seem more complex. Instead of the always - positive and upbeat Naruto we know, we see a Naruto who is dealing with self - doubt and loneliness. It can also make readers more sympathetic towards him. His character becomes more three - dimensional as we understand the emotional pain he goes through when feeling unwanted.
The fact that Ino feels cold and enters the fanfiction could be used as a device to bring in a new element, like a magical cold - resistant cloak. Naruto might have to search for this cloak to help Ino. This search could lead them to different places and introduce new characters in the fanfiction. Maybe they meet an old sage who gives them clues about the cloak and also about a greater threat to the ninja world that they then have to face together.
In the Naruto fanfiction, it could be that Ino stumbles upon a story where all the Konoha ninjas are gathered in a warm, magical place. There, she meets Naruto, and they start sharing stories by a big, cozy fire. And Naruto's positive energy makes her feel even warmer, not just physically but also in spirit.