Naruto might convince Hiashi by pledging his loyalty to the Hyuga clan. He could say that he'll uphold the clan's values and traditions. Also, Naruto could mention how Hinata has been a positive influence on him, which shows his respect for her. He might also talk about his plans for the future and how Hinata will be an important part of it in a way that benefits both the Uzumaki and Hyuga clans.
Hiashi could be initially skeptical. Naruto has a reputation for being a bit of a troublemaker at times. But if Naruto presents a good case, Hiashi might warm up to the idea. For instance, if Naruto shows how his actions would bring honor and prosperity to the Hyuga clan.
One possible reason could be that Naruto is in love with a Hyuga clan member. Since Hiashi is the head of the Hyuga clan, Naruto might think it's proper to ask for his blessing. For example, if he has feelings for Hinata, Hiashi's daughter. Hiashi's approval would mean a lot in terms of family and clan acceptance.
Naruto asking for Hiashi's blessing in a fanfiction could lead to a whole range of scenarios. Firstly, Naruto might approach Hiashi with a lot of respect but also his usual bravado. Hiashi, being the head of the Hyuga clan, would have his own concerns. He might worry about how the other clans would react to a union between Naruto and a Hyuga. However, Naruto could counter this by talking about his dream of uniting the ninja world. His relationship with Hinata could be presented as a symbol of that unity. And as Naruto shows his understanding of the importance of family and clan, Hiashi could gradually come around and give his blessing.
One possible motive could be a misunderstanding. Maybe Hiashi mistakes Naruto for an enemy who has infiltrated the village in disguise. Another reason could be related to clan politics. If Naruto somehow gets involved in a situation that threatens Hiashi's clan interests, Hiashi might take extreme measures.
In some fanfictions, Naruto might use his newfound jutsu skills. He could quickly dash in between Hiashi and Hinata, using his speed and agility to block any attacks Hiashi might be launching towards Hinata. His Rasengan in his hand, ready to defend if Hiashi doesn't back down. This shows Naruto's determination to protect Hinata from any harm, even from her own father in this fictional scenario.
His character could grow in terms of his understanding of family. Growing up as Hiashi's son, he'd be surrounded by a different family structure compared to his lonely childhood in the original story. This could make him more empathetic towards others' family situations. He might also start to value the importance of lineage and heritage in a new light, using both his Uzumaki and Hyuga backgrounds to become a stronger and more well - rounded ninja.
In Naruto and Hiashi fanfiction, Naruto and Hiashi are the central figures. Naruto is often depicted as the catalyst for change or a source of new ideas in these stories. Hiashi represents the traditional values and power of the Hyuga clan. Sometimes, other characters from the Naruto universe might also be involved, like Hinata, who is Hiashi's daughter and has her own connection to Naruto. But overall, Naruto and Hiashi are the main focus, with their interactions driving the plot forward, whether it's about mending clan relations, fighting a common enemy, or exploring new ninja techniques.
In this fanfic, Naruto might save Hiashi in a battle situation. Maybe Hiashi is facing a powerful enemy that he can't handle alone, and Naruto steps in with his strong ninja skills. For example, if Hiashi is being attacked by a group of rogue ninjas, Naruto could use his Rasengan to fend them off.
One interesting Naruto and Hiashi fanfiction could be about Hiashi training Naruto in some secret Hyuga techniques. Maybe Naruto has to prove himself to Hiashi first, and through a series of trials, they form an unlikely bond.
Well, it could be about Naruto growing up in the Hyuga clan. Maybe he discovers his true parentage early on and has to deal with the expectations and politics of the clan. He might learn the Gentle Fist technique in a different way than Neji or Hinata.