Most likely, there is the character who is trying to bring the 'her' home. And of course, the female character who needs to be brought home. There might also be a villain or an antagonist in the castle who doesn't want her to leave.
In this fanfic, a possible plot is that the character is trapped in the castle due to some sort of magic or curse. So, the one trying to bring her home has to figure out how to break this magic or curse. They might have to search for ancient artifacts or learn forgotten spells. Along the way, they encounter different characters in the castle, some friendly and some hostile, which all add to the complexity and excitement of the story as they strive to bring her home.
Since I don't know the exact 'bring ghost back home story', it's hard to say. But it could be a psychic who has the ability to communicate with ghosts as one of the main characters.
Well, it could be a young adventurer who stumbles upon the ruins of the castle and becomes the key to its resurrection. Maybe they have a special gift or power that is needed.
A group of knights could be the main characters. They are sworn to protect the castle and when it begins to disappear, they see it as their duty to figure out what's wrong and stop it. They could bring different skills like swordsmanship, tracking, and knowledge of ancient magic to the story.
A brave knight who was injured in battle could be a main character. He might be struggling with not only his physical wounds but also his mental state as he's used to being strong and active.
I don't know for sure as I haven't read it. But it could be the typical hero - like a brave knight or a curious adventurer. There might also be a villain, perhaps a dark sorcerer or a power - hungry noble who wants to control the castle.
Well, it could be a young hero, perhaps named Alex, who has a special ability like being able to control fire. Alex might be on a journey to discover the truth about the castle.
Perhaps the main characters are a set of friends who have always dreamed of exploring the castle. They could have different personalities, like one who is really into history and another who just loves adventure. These friends would then be the central figures in all the play date adventures within the 'castle play dates fanfic'.
In 'castle fake divorce fanfic', it's likely that the main characters are the two people whose relationship is at the center of the story. They might be characters with different personalities and occupations. For example, one could be a strong - willed lawyer and the other a laid - back artist. Their differences would play a big role in how the fake divorce unfolds.
A young peasant boy with great potential could be a main character. He is chosen from his village to go to the castle for training as a knight. There could also be an old, grizzled knight as his mentor, guiding him through the tough training regime.