Zabuza could be quite cold to Naruto at the beginning. He's not exactly the warm - and - fuzzy type. But when Naruto shows his skills and tells his story of being banished unjustly, Zabuza might empathize on some level. He might not show it openly, but he could start to protect Naruto in his own way, perhaps because he sees a bit of his younger self in Naruto who was also wronged by the ninja system.
He could learn Zabuza's signature water - style jutsu, like the Hidden Mist Technique. This would give Naruto an advantage in terms of creating diversions and hiding his movements during battles.
In regular Naruto fanfiction, the focus is often on Naruto's growth as a ninja, his battles, and his relationships in a more general sense. In Naruto and Zabuza yaoi fanfiction, the relationship between Naruto and Zabuza is romantic and often sexual in nature. It takes a different turn from the typical friendships or rivalries shown in regular fanfiction.
Zabuza could be portrayed as more of a mentor figure. Instead of just being a ruthless assassin, he could be shown guiding Naruto in some aspects of combat or strategy. Maybe he survived his encounter with Kakashi and had a change of heart, and now he imparts his knowledge to Naruto who is now a sensei himself.
Well, Naruto is a very impressionable character. His idolization of Zabuza might make him more open to using unorthodox or morally grey techniques. He could start to question the black - and - white view of good and evil that he initially had. Maybe he would see the value in Zabuza's loyalty to Haku, which could in turn strengthen Naruto's own bonds with his friends.
Well, it could be due to some sort of mind - control jutsu. Maybe Zabuza uses a special technique that he learned in the Hidden Mist Village to make Naruto do his bidding.
Well, in the original, Haku and Zabuza die. But in this fanfiction, Sakura's actions change that fate. This is a huge deviation as it completely alters the expected outcomes for those characters.
They might start by understanding each other's motives. Naruto, with his empathetic nature, tries to see things from Zabuza's perspective. Zabuza, in turn, begins to appreciate Naruto's positive outlook. Communication is also key. They talk about their pasts, their dreams, and what they want from life. This helps them to bridge the gap between their differences.