Another type of mission could be diplomatic ones. Since their guild has members from different worlds, they might need to act as mediators. For instance, if the ninja villages and mage guilds were on the verge of war, Naruto and Zeref's guild could try to negotiate peace terms. Naruto could use his charm and understanding of ninja politics, and Zeref could bring his influence in the mage world.
They could undertake missions to stop dark magic users. With Zeref's knowledge of dark magic and Naruto's combat skills, they would be well - equipped. For example, if there was a mage using forbidden spells to cause chaos, their guild could be called in to stop it.
One idea could be that Naruto's positive and determined attitude clashes with Zeref's more dark and brooding nature at first. But as they form the guild, they learn from each other. Naruto could teach Zeref about the value of friendship and hope, while Zeref might introduce Naruto to more complex magic concepts. Maybe they create a guild that focuses on both physical combat skills like Naruto's ninja techniques and magical powers like Zeref's.
Well, Naruto would probably be a very different character. Zeref has a dark and complex nature. Naruto might grow up with a different view on power and life. He could be more conflicted between his natural heroic tendencies and Zeref's influence which often leans towards the darker side of magic and existence.
It would be a wild mix. Naruto might inherit some of Zeref's dark magic abilities while still having his own ninja skills. There could be a lot of internal conflict as Naruto tries to reconcile his ninja values with the dark nature of Zeref's power.
Missions involving diplomatic relations could also be on the table. Naruto has a way of making friends and influencing people, and Itachi's calm and composed presence could add an air of authority. They could be sent to mediate between feuding ninja villages. Another type of mission could be rescuing important hostages. Naruto's determination and Itachi's stealth and combat abilities would make them a great team for this. Itachi could silently take out the guards while Naruto locates and frees the hostages.
He might take on rescue missions. For example, rescuing hostages from bandits or rogue ninjas. Since he has a strong sense of justice, he'd be drawn to such tasks. He could also be hired for protection missions, like guarding a caravan traveling through dangerous lands.
It would be a wild mix. Naruto's ninja world combined with the magic of Mavis and Zeref's universe. Maybe Naruto would have some unique magical ninja powers.
Naruto would probably win. He has the Nine - Tails' chakra which gives him a huge boost in power. He can also enter Sage Mode and has mastered many powerful techniques over the years. Zeref is strong, but Naruto has faced some really tough opponents and has always found a way to come out on top. In a fanfiction fight, Naruto's determination and willpower would also play a big role.
Naruto would likely change the guild's training regime. He'd focus on building physical strength as well as magical power. Since he's used to intense training himself, he'd push the members to be better. He might also introduce a system where members help each other more directly, like his team - based approach in Naruto.
It's very possible. In the realm of fanfiction, all sorts of wild ideas are explored. Since both Naruto and Zeref come from different fictional settings, a fanfiction writer might have decided to blend the two. Maybe they saw some similarities in their characters' powers or personalities that led them to create a story where Naruto is Zeref's son. This could also open up a whole new set of plotlines, such as Naruto having to deal with his newfound heritage and the implications it has on his relationships in the Naruto universe.
Naruto's personality would be a blend of his original self and Zeref's traits. He may still have his determination but it could be a darker kind of determination. His sense of humor would probably be lost as Zeref doesn't seem the type to encourage light - heartedness. Also, he could be more secretive, not as open as he is in the original Naruto series because Zeref often keeps his own council.