Another factor could be a significant life event. Maybe he lost someone close and that made him realize the importance of being in control of his feelings. So, he becomes calm as a way to honor the memory of that person and also to be a better shinobi.
Maybe Naruto uses his positive energy. Naruto is known for his optimistic and persevering nature. He could flood Kurama with his positive emotions, like hope, friendship, and love. These strong positive feelings might be so overwhelming for Kurama that they gradually soothe his angry and wild nature, thus calming him down.
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.
One possible Naruto fanfiction could be about Naruto learning a new slashing jutsu during a period of self - reflection in a calm and quiet forest. He discovers a hidden scroll that teaches him an ancient slashing technique. As he practices in the solitude of the forest, he gradually masters it and uses it to surprise his opponents in future battles.
One great Naruto fanfiction where he is calm is 'The Calm Within the Storm'. In this story, Naruto has learned to master his inner turmoil and presents a more serene front. He uses his newfound calmness to strategize better during battles and also to handle political situations in the shinobi world more effectively.
A prevalent theme is also the impact on relationships. When Naruto is calm and collected, his relationships with characters like Sasuke, Sakura, and Kakashi can change significantly. For instance, Sasuke may start to see Naruto in a new light, not as the hot - headed rival but as a more composed equal. Also, Naruto's calmness can inspire those around him to be better, which is another common theme in these fanfictions.
First, understand the characters well. Naruto has a core personality that is energetic and kind - hearted, but for a calm smart version, you need to focus on his potential for growth in wisdom. Research the Naruto world thoroughly, including its politics, cultures, and power structures. This knowledge will help you create a more believable and engaging story. Also, use a calm and measured writing style, avoiding overly dramatic language.
Kurama's power is also a problem. He is extremely powerful and his outbursts are not easy to control. Naruto might find it difficult to contain Kurama's power while also trying to calm his emotions. If Kurama gets too out of control, Naruto could be in real danger himself.
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.