One possible antagonist could be an old enemy of the Uzumaki clan who has a personal vendetta. This enemy might have survived the previous battles against the Uzumaki and doesn't want to see the clan rise again. They could use their knowledge of the Uzumaki's weaknesses to try and stop Naruto. Additionally, some of the smaller clans that have always been in the shadow of the major clans might see the Uzumaki restoration as a chance for the major clans to gain even more power, so they oppose it.
It could be some rogue ninja groups. They might fear that a restored Uzumaki clan would disrupt the current balance of power in the ninja world. These groups could target Naruto and his supporters, stealing resources meant for the clan restoration or spreading false rumors about the Uzumaki clan to turn public opinion against them. Also, there might be some corrupt politicians within Konoha who oppose the restoration act for their own self - serving reasons.
The main antagonists could be other powerful clans in the Hidden Leaf Village. For example, the Uchiha clan (if they were still around and had some grudges or power struggles). They might see the restoration of the Hinata clan as a threat to their own status and power within the village.
In such a fanfic, the story could begin with Naruto feeling a strong sense of responsibility towards his clan. He decides to pass a 'clan restoration act' in Konoha. This would involve things like getting support from the Hokage and other important figures in the village. Naruto might also travel to different lands to find any Uzumaki artifacts or scrolls that could help in the restoration process. Along the way, he'd encounter various challenges and make new allies who are interested in seeing the Uzumaki clan rise again.
Naruto would surely be one of the main characters. Given his status as a hero in the Naruto universe, he would be involved in the Clan Restoration Act, either as a supporter or a mediator. Sasuke could also be a main character as his clan, the Uchiha, was destroyed and he might have a strong opinion on the restoration. Sakura, being part of Naruto's group, would also play a role, perhaps in the medical support or training of the new clan members. Additionally, the clan leaders or representatives of the clans being restored would be main characters, like the Hyuga clan head.
It's hard to say without reading it. But it could be female versions of the main Naruto clans' members, like a female Naruto from the Uzumaki clan or a female Sasuke from the Uchiha clan.
Obviously Naruto would be one of the main characters. Since it's about the Namikaze clan restoration, he's the key figure as he is part of the clan. There might also be some of his friends like Sasuke who could support or oppose his efforts in different ways.
Naruto is often a main character as he is usually at the center of any major change in the Naruto universe. Sasuke might also be involved as he has his own ties to the Uchiha clan and its restoration could be part of the story. Hinata could play a role too, considering her clan's importance and how the overall restoration act might affect the Hyuga clan.
The plot of a 'Clan Restoration Act Naruto Fanfiction' might involve the economic aspects of clan restoration. Restoring a clan means building infrastructure, providing education for the new clan members, etc. Some clans might struggle with financial resources. There could be a storyline where a small, almost extinct clan tries to make a comeback but faces difficulties due to lack of funds. Moreover, the act could also lead to new alliances being formed between clans. Maybe a weaker clan teams up with a stronger one for mutual benefits during the restoration process.
In this fanfiction's plot, it could be that the Hinata clan has lost its unique abilities over time due to various reasons. Naruto, with his own experience of growing and becoming stronger, takes on the task of helping Hinata revive her clan. They embark on a journey to find ancient scrolls or artifacts related to the Hyuga clan. Along the way, they face many challenges, like traps set by enemies who don't want the Hyuga to be restored. As they progress, they also discover new things about the clan's past that help in the restoration process.
I'm not entirely sure specifically about the 'Naruto Clan Restoration Act' in Mei fanfiction. It could be a unique plot device created by the fanfic author to bring back the Naruto clan in some way, perhaps through political means or some kind of magical/special ability within the context of the fan - created story.
I'm not entirely sure as there could be many different interpretations of such a fanfiction. It might be about female characters in the Naruto universe taking part in an act to restore their clans, perhaps involving things like rebuilding their families, reclaiming lost traditions and powers.