It could be related to their different personalities. Naruto is very outgoing and impulsive, while Kurenai is more calm and reserved. In the fanfiction, their clashing personalities might lead to Naruto developing a dislike for her. Naruto might feel that Kurenai is too strict or unapproachable, which causes him to hate her.
Well, it could be due to a clash of values. Naruto has his own ninja code and beliefs from his world. The Olympians might have different ideals like competition for glory which Naruto may see as self - centered compared to his more community - based ninja values.
One possible reason could be that he's had a bad experience with the taste. Maybe the ramen was made wrong one day and it left a really bad impression on him.
One possible reason could be that Naruto might feel Kakashi is too strict with his training. Maybe Kakashi's methods are too harsh for Naruto, making him frustrated and gradually developing dislike.
One possible reason could be a misunderstanding. Maybe some false information was spread about Kushina that made Naruto believe she was a bad person. For example, if there were rumors that she abandoned him for some untrue reason, it might lead to his hatred.
It could be that Yugao has a connection to an enemy or a group that Naruto dislikes. This connection could make Naruto view her with suspicion and ultimately hatred. In some fanfiction scenarios, she could be unknowingly involved with a plot against Naruto or his village.
It could also be related to personal relationships. Tsunade might have been hard on Naruto in a way that he felt was unjust. Perhaps she was overly critical of his unorthodox ninja techniques or his impulsive nature, and over time, this built up into hatred. Naruto, being someone who values respect and recognition, could have resented her for not seeing his potential in the way he wanted.
One possible reason could be the pressure associated with the Hokage title. Naruto has always been in the spotlight and being Hokage comes with a huge burden of responsibility. Maybe in the fanfiction, he resents how it restricts his freedom to just be himself and have adventures like he used to.
In the fanfic, Naruto could hate the Hokage because of some bad experiences related to past Hokages. Perhaps he discovers some dark secrets about how the Hokage office has made decisions that he doesn't agree with. It might be something like a cover - up of certain events that Naruto believes should have been dealt with more fairly.
Perhaps in this fanfiction, there is some sort of misinformation. For example, someone has spread false rumors about Naruto being a threat to the village, and Minato and Kushina believe it without proper investigation. This could lead to their hatred.
One reason could be for the sake of creating drama. Fanfiction writers like to add intense emotions and conflicts to their stories. By having Kurenai cheat on Naruto, it creates a huge emotional upheaval for Naruto's character, which can lead to interesting character development arcs within the fan - created story. It also gives the writer a chance to explore how Naruto would react in such a difficult situation, which might be different from his usual optimistic and determined self in the original series.