Give her some flaws as well. For instance, she might be a bit over - confident at times. She thinks she can handle a certain situation on her own but actually gets into trouble. This flaw can lead to her learning important lessons. And in the fanfiction, you can show how she grows from these experiences. Maybe she starts to listen more to the advice of others and becomes more cautious while still maintaining her adventurous spirit.
You can start by giving her a distinct personality. Maybe she's really shy but has a fierce determination inside. For example, she might be quiet in group settings but when it comes to protecting her friends or family, she's fearless. Give her some hobbies too, like she loves to draw the different mythical creatures she's heard about. This can show her creativity and her connection to the world of the gods.
Give her a distinct personality. For example, she could be really curious, always asking questions about the demigod world. Make her brave but also a bit naive at times. She might be more in tune with nature than other characters, able to sense things about the environment. Another aspect is to show her relationship with Percy. She could look up to him and want to be just like him, but also have her own ideas about how to handle situations.
You can start by giving her a distinct personality. For example, if Percy is brave and impulsive, she could be more cautious and analytical. Show her interests, like if she loves art or is into science. Also, explore her relationship with Percy. Maybe she's a bit jealous of all the attention he gets, but also proud of him. Another aspect is her reaction to the demigod world. She could be initially skeptical and then gradually accept it.
She might start off as a shy character. But as the fanfiction progresses and she discovers her connection to lemons, she becomes more confident. For example, if she uses lemons to make a magical item, she realizes her own capabilities and starts to stand up for herself more.
For Percy, you can show his protective side more when it comes to his sister. Have him be more cautious and less reckless in situations where her safety is at stake.
Develop his relationships. If Percy is the son of Persephone, his relationships with other characters like Annabeth will change. There could be jealousy or confusion from her side as Percy's new heritage might bring new responsibilities and loyalties. Also, his relationship with the gods, especially those related to the Underworld and nature, would need to be explored. He might have to deal with Hades in a different way now.
His character would become more confident in his artistic abilities. Apollo is the god of many arts, so Percy would likely be exposed to music, poetry, and painting. He might be more flamboyant in his actions and speech, as Apollo has a certain charm. For example, he could start using more flowery language when talking to his friends or enemies.
Percy's character would likely become more in tune with nature. He'd be more reserved perhaps, as he grows up in an all - female group. His sense of honor might be more shaped by Artemis' values, such as protecting the weak and the natural world.
Percy's character development in this fanfiction might start with a sense of loss. Losing his demigod status means losing a big part of his identity. He may become more humble as he realizes the challenges that mortals face every day. As he adapts to mortal life, he could become more self - reliant in different ways, like having to earn money for the first time or deal with normal school problems without relying on his powers.
In the fanfiction, their relationship could start off rocky. Maybe the sister resents Percy for always being in the spotlight. However, as they face challenges together, like fighting a powerful monster, they start to understand each other better. Percy learns to listen to his sister's ideas, and she learns to trust his experience. Eventually, they become a great team and have a really close relationship full of mutual respect.
Percy could develop by becoming more responsible. As the adopted son of the Fates, he has a greater role in the grand scheme of things. So he might start thinking more about the long - term consequences of his actions.