One possible reason could be that in the fanfiction, Kakashi might have made a decision during a mission that Naruto strongly disagreed with. For example, Kakashi could have chosen to sacrifice something important to Naruto in order to achieve the overall mission objective.
Maybe in this fanfiction, Kakashi has been acting differently from how Naruto expected. Naruto is used to seeing Kakashi as a certain kind of person, but if Kakashi starts to change his behavior, like being overly strict or cold towards Naruto without proper explanation, it could lead to Naruto hating him.
It could also be that in the fanfiction, Kakashi has some secrets that when revealed, make Naruto feel betrayed. For instance, if Kakashi was somehow involved with an enemy in a way that Naruto finds unacceptable, it would definitely cause Naruto to hate him. This would completely shatter Naruto's trust in Kakashi.
Chapter 478, ", The Long-Awaited Technology Lottery", is the clearest early answer because it turns Gu Hang's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Gu Hang had about fifteen hundred thousand Grace Points remaining for... and follows through with As for the last two, [Dreadnought Mech] and [Strike Cruiser], they....
Chapter 465, ", Alliance Rushes to the Battlefield!", is the clearest early answer because a shaky connection becomes usable in the plot. It opens with But in his original judgment, one was a high official of the Empire,... and closes on Half a year ago, when you were supposed to attack full line, you.... The key payoff is that the danger stops being abstract and the conflict around Firebath Nova becomes immediate, forcing the surrounding cast to react under pressure.
Chapter 461, ", it's time to urge a bit.", is the clearest early answer because it turns Dragonhawk Star Domain's situation into a concrete plot event. The chapter gives readers a real answer by opening on Two years passed in a flash. and ending on For a typical Battle Group, losing 30% of its forces in just one war....
Chapter 382, ", He Really Believed It!", is the clearest early answer because it turns Fatches's situation into a concrete plot event. It opens with But now, nearly eight years had passed since the Dragonhawk 3rd Corps... and closes on It was an option that should never exist, a suicidal move, an.... The key payoff is that the chapter closes with "...Quick, call Gu Hang!, which gives family politics a stronger narrative position and pushes the power growth onward.
Chapter 391, ", Mr. Gu", is the clearest early answer because it turns Xu Dechen's situation into a concrete plot event. The chapter gives readers a real answer by opening on During the call with Lois, the lady was quite surprised. and ending on Turning his head, he began to worry again..
Chapter 20, "A Sudden Appearance", is the clearest early answer because it turns Gerald's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Gerald remained frozen in place at the mere fact that he'd come... and follows through with Gerald grinned and leaped into the air to deal damage when a certain....
Chapter 392, ", Economic Reform and Development Plan", is the clearest early answer because it turns Rage Owl Star's situation into a concrete plot event. The setup is The Alliance system has always been overlooked by outsiders, yet it..., but the pressure keeps building through It is especially suitable for rapid development from poverty..
Chapter 406, ", Phoenix Has No Secrets", is the clearest early answer because the hidden truth stops feeling like mere subtext. The chapter turns that into something concrete by moving from Ahzimuba's eyes whirled, his mind raced through idea after idea—he... to Dominantly bright red, with white borders at the edges of different.... What makes it stick is that the chapter closes with Pausing, he added, "Don't overlook any possible witnesses, and don't let anyone leave the quarantine camps.
Chapter 431, ", I made the call too early.", is the clearest early answer because it turns Gu Hang's situation into a concrete plot event. It opens with Gu Hang received the news from Wu Jiarong on Shangyuan Star in the... and closes on Even food supplies would be problematic; Upper Plateau Star probably....
Chapter 381, ", Reverse His Mother's!", is the clearest early answer because it turns Isabel's situation into a concrete plot event. Early on, Iron Curtain Queen, it's been a long time." Isabel waved her hand and.... By the end, Let's talk about something else, something cheerful.. Inside the broader family politics storyline, the chapter closes with "On Heijian Star, it's much the same;