In Naruto Theatrical Version: The Path of the Ninja, which was mentioned in the reference materials, Kakashi was controlled by the villain's puppet technique and left the wooden leaf village to fight the villain at his own game. Read more exciting novels for free
Well, one similarity could be their determination. In the fanfic, like in the original series, both Naruto and Kakashi are very determined. Naruto is always striving to become Hokage and Kakashi has his own goals and missions he's dedicated to. They also might share similar combat styles in the fanfic, perhaps Naruto starts to adopt some of Kakashi's strategic thinking during battles.
In Naruto, Kakashi faced many dangerous situations. For example, when Orochimaru invaded Kiba, Kiba was in great danger, and Kakashi was also in danger. He saved Naruto, who was lying on the hospital bed, from Dou's hands. When Payne had invaded Kinabe Village, Kakashi had fought with him and was stabbed to death by Payne with a nail. This was a very dangerous situation, but he was later resurrected by Nagato Samsara. Kakashi was constantly in danger while carrying out many missions. He had carried out 197 D-rank missions, 190 C-rank missions, 414 B-rank missions, 298 A-rank missions, and 42 S-rank missions. During these missions, he would inevitably encounter all kinds of powerful enemies and dangerous situations. In addition, when Kakashi participated in the mission to rescue Sasuke, he relied on the ninja dog to find the Broken River Valley. Although he saved the seriously injured Naruto, it also showed the danger of the mission. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Sasuke could be a popular character. He might be involved in the story in a way that either helps or hinders the situation where Naruto hurts Kakashi. For example, if Sasuke tries to stop Naruto from doing something stupid that would hurt Kakashi.
Another reason could be related to Kakashi's past actions. If there are some secrets or things Kakashi did in the past that come to light and Naruto doesn't like them, he could snap at Kakashi. Naruto has a strong sense of justice and loyalty, so if he feels betrayed or misled by Kakashi, his reaction could be to snap.
Communication is key. If they sit down and talk about their misunderstandings and feelings, it could start to mend their relationship. Naruto could express his frustrations, and Kakashi could explain his actions.
One possible reason could be Kakashi's reputation as a strict and powerful teacher. Naruto might be in awe of his skills and fear making mistakes in front of him.
In this fanfiction, Kakashi could help Naruto in his training through mental conditioning as well. Naruto is often impulsive, so Kakashi may work on his patience and decision - making skills. He could use his Sharingan (if applicable in the fanfiction) to analyze Naruto's movements during training and give him detailed feedback. Moreover, Kakashi could introduce Naruto to different types of enemies and battle scenarios in a controlled training environment, which would broaden Naruto's understanding of combat and make him a more versatile ninja.
Their relationship is like a mentor - mentee bond. Kakashi has trained Naruto, and when he sees Naruto achieve great things, it can be overwhelming. For example, when Naruto masters a new jutsu that Kakashi thought was difficult for him, Kakashi might cry out of joy for Naruto's accomplishment.
Naruto might be the better singer in terms of energy and enthusiasm. His loud and boisterous nature could translate into a powerful and engaging singing voice. He'd probably belt out songs with great passion, getting the audience pumped up.