I'm not sure specifically as there could be many different interpretations in that fanfiction. It might be about Naruto having some special connection to a celestial being, like being the son of one. Maybe it involves Naruto having unique powers or a special destiny because of his celestial heritage.
In fanfic, 'anthropomorphic Celestia' means presenting the character Celestia in a human - like form. It gives her more relatable human characteristics and behaviors, which can be used to explore different storylines and relationships within the fan - created narrative.
Obviously Naruto would be one of the main characters since it's about him being the son of Celestia. There might also be other characters from the Naruto universe like Sasuke and Sakura who could be involved in the story, perhaps having different reactions to Naruto's new identity.
Well, it could be about a whole new take on Harry Potter's story where he is the son of Celestia. Maybe it involves him having some special powers or a different destiny related to his celestial parentage.
A 'yandere' character in a fanfic is often possessive and extreme in their love or obsession. In a 'yandere Celestia and Twilight fanfic', Celestia being a yandere could mean she has an over - the - top, perhaps even dangerous, love for Twilight. This could lead to complex power dynamics as Celestia is often in a position of authority. Twilight, on the other hand, might be the object of Celestia's affections, and have to deal with the consequences of such intense feelings. It could also explore themes like loyalty, friendship, and how far one would go for love in the context of the My Little Pony universe.
In a fanfic, their relationship could be developed by having Celestia make sacrifices for Nightmare Moon. This shows that she truly cares about her sister, even in her Nightmare Moon form. For instance, Celestia could give up some of her magic to try and heal Nightmare Moon. Nightmare Moon, in turn, might be initially suspicious but then start to question her own hatred towards Celestia. You can also have them interact with the other ponies in Equestria. Seeing how Celestia is loved by the ponies and how they fear Nightmare Moon can make Nightmare Moon re - evaluate her relationship with Celestia and Equestria as a whole.
They can change her appearance. Maybe make her look more menacing, with darker colors in her mane and tail, or a more stern expression. For example, her eyes could be drawn to look cold and unfeeling.
Obviously Naruto himself and Queen Celestia as his mother. There could also be characters from the Naruto series like Sasuke and Sakura. They might come to the world where Queen Celestia rules to help Naruto or to explore. And from Queen Celestia's side, there could be her loyal subjects, like the ponies if it's related to the My Little Pony world where she is from. They could interact with Naruto in various ways, either being friendly or a bit suspicious of this new 'son' of their queen.
The plot might involve Naruto having to prove himself as the son of Queen Celestia. There could be those who doubt his lineage and he has to go on quests or battles to show that he is worthy. He could also learn about his mother's (Queen Celestia) history and the secrets of the land she rules, all while using his ninja skills in a new and magical context.
Obviously, Harry Potter would be one of the main characters. And since he's the son of Celestia, Celestia herself might be an important figure, either directly or through her influence. Then there would probably still be characters like Hermione and Ron, as they are Harry's friends in the original story and would likely be involved in his new adventures too.