He might be very intelligent. Since Prometheus is known for his wisdom, Percy could inherit that trait. He would be able to quickly analyze situations and come up with solutions.
He may also be self - sacrificing. Prometheus sacrificed a great deal for humanity. Percy could have that same sense of duty and be willing to put himself in harm's way to protect others or to uphold what he believes is right, just like his father did in the myths.
Perhaps Percy has to go on a quest to find an ancient artifact that was once in Prometheus' possession. Along the way, he meets other demigods who are either helping or hindering him, and he has to use his wits and the unique abilities he got from his father to succeed.
Another plotline could involve Percy having to protect the concept of Order from a powerful antagonist who wants to spread chaos. This could lead to epic battles and Percy having to use his unique connection to Order to defeat the enemy. He might also have to gather allies along the way who believe in the importance of Order.
He would probably be highly intelligent. Mycroft is known for his brilliant mind, and Harry would likely inherit that. He'd be able to analyze situations quickly and come up with solutions. Also, he might be more introverted compared to the original Harry. Mycroft is not a very outgoing person, so Harry could be more reserved, spending time thinking and planning rather than being in the spotlight all the time.
He could be seen as rebellious. His tattoos and piercings might be a sign of his non - conformist attitude, always ready to break the norms in the music industry and in life in general.
For Kushina, her fiery and passionate nature can be explored. Her love for her family and the village can be a central aspect. For example, she could be shown as being extremely protective of the younger generation, just as she was of Naruto. Tsunade's determination and her struggle with her own insecurities can be delved into. Despite her powerful exterior, she has her own doubts, and in a fanfic, these can be shown as she works with Kushina.
His character would likely be a blend of Athena's wisdom and Poseidon's boldness. He'd be more calculating in his actions, thinking several steps ahead like Athena, but also not afraid to take risks when necessary, similar to Poseidon. He might have a natural inclination towards both strategy and brute force, which could make him a very unpredictable and powerful character.
Both of them could also show a great deal of love and protectiveness towards each other. This would be especially important in a mating fanfic as it would be the foundation of their relationship. They would protect each other from physical and emotional harm, and this would strengthen their bond.
Alice might be adventurous. Despite being in a new environment, she could be eager to explore the town or try new activities. This adventurous side could lead her to discover new places and meet interesting people. For example, she might stumble upon an old bookstore that becomes her favorite hangout. And that's where she meets some of her closest friends in the fanfic.
Again, without knowing the specific character or the novel, it's difficult to say. But if it's from a Victorian - era novel, the character might be very proper and concerned with social status, like many characters in the works of Charlotte Bronte.
Well, he might gain new perspectives on the events and characters in 'The Son of Neptune'. Maybe he'll find alternative versions of his own actions or the actions of his friends interesting. It could also make him reflect on how others view the story.