One possible plot could be that Rhaenyra takes on the role of a strict but loving mentor. She teaches her siblings about the ways of the court, how to handle political intrigue. For example, she might train them in the art of diplomacy, like how to make alliances and avoid conflicts. This would help them grow into strong and capable members of the family, ready to face any challenges that come their way.
In this fanfiction, it could be that Rhaenyra adopts her siblings as a way to show her power and benevolence. She wants to prove that she can be a great leader not just in ruling the kingdom but also in taking care of her family. She might give her siblings important roles within her court, and they in turn support her in her political endeavors.
The relationships would change in multiple ways. Rhaenyra would need to earn the trust of her siblings as their new guardian. There could be some jealousy or resentment from her siblings at first, especially if they were used to more freedom. However, as time passes, they would grow closer. Rhaenyra would also have to deal with any rivalries between her siblings. She would need to be fair and just in her treatment of them, which could either strengthen or strain their relationships depending on how well she manages it.
One challenge could be dealing with their different personalities. Each sibling might have their own desires and goals. For instance, one might be more interested in military matters while another in the arts. Rhaenyra would have to find a way to nurture all of them individually.
In this fanfiction, Naruto would likely face many challenges. He'd have to provide for them, protect them from the village's possible discrimination, and also teach them ninjutsu. He might struggle to balance his own ninja duties with his new role as a caregiver.
He would become more responsible. Naruto has always been a bit of a wild card, but with siblings to look after, he'd have to think twice before acting impulsively.
There's also 'Love in the Shadows: Harwin and Rhaenyra'. This one focuses on the more private and tender moments between them. It beautifully describes their love that had to be hidden from the public eye, and how they managed to find solace in each other despite all the difficulties.
There's 'Friends in the Strangest of Places'. This fanfiction has them becoming friends in a very unexpected situation. It shows that even in a world full of conflict, friendship can bloom between the most unlikely of people.
One great 'rhaenyra and alicent fanfiction' is 'The Unlikely Bond'. It focuses on how they overcome their differences. Another is 'A New Understanding' which delves into their complex relationship in a very emotional way. 'Shared Secrets' is also popular as it shows them sharing things they've never told anyone else. 'The Path to Reconciliation' is about their journey towards mending their broken relationship. And 'In Each Other's Shadow' explores how they both influence each other's lives.
Power struggle is a very common theme. Since they are in a world full of political intrigue, their fight for power, either directly or through their families, is often explored. Another theme is the complex female friendship. They start as friends or at least friendly towards each other, and then things get complicated. Love and betrayal also come up a lot, as their relationship is full of emotional ups and downs.