He would likely be more cautious. Since he's born with this connection to monsters, he might be more aware of the dangers around him from a young age. He'd be less likely to rush into things like the normal Percy does. For instance, when he first hears about Camp Half - Blood, instead of just going along with Grover, he might be more hesitant and ask a lot more questions because he knows the potential threats monsters pose.
He would likely be more cautious and distrustful. Since he's being raised by a monster, he may not have the same sense of heroism and justice that the normal Percy has. He might see the world as a more dangerous place where only the strong survive.
His character would likely be more cynical. Growing up among monsters, he'd see the cruel side of the world early on. He might be more distrustful of others, even those who seem friendly at first. For example, when he finally meets other demigods, he'd be hesitant to trust them right away.
Percy would likely be more in tune with the concept of home and family. Since Hestia represents the hearth, Percy might be more nurturing and protective. He could develop a stronger sense of responsibility for the well - being of his friends as if they were his family.
Percy would likely be more brooding. Since Iapetus was often seen as a rather serious figure in mythology, Percy might inherit some of that solemnity. He could be more withdrawn, thinking deeply about his new identity.
Canon Percy is a son of Poseidon. If he were the son of Artemis and Orion, his character would be more reserved in terms of relationships. Since Artemis is associated with chastity, Percy might be more cautious about romantic involvements. Also, his combat style would be different. Instead of relying on water powers, he'd focus more on archery and hunting skills.
As a baby, Percy's character development would start from a very innocent and instinct - driven state. Instead of the typical teenage bravado, his early development could focus on his natural abilities emerging in a more uncontrolled way. For example, he might accidentally zap things with his water powers when he's excited or scared.
Percy would likely become more devious. Growing up with Loki as an adoptive father, he'd be exposed to Loki's tricks and lies. So instead of his straightforward, if sometimes impulsive, nature in the original Percy Jackson stories, he might think more about the different angles of a situation before acting.
Percy as the son of Zeus would likely develop a different moral compass. Zeus has different values compared to Poseidon. Percy might be more concerned with upholding the laws and order of Olympus in a more strict sense. He'd also have to deal with the politics of being in Zeus' family, which could make him more cynical or calculating at times. However, his fundamental goodness might still shine through as he tries to find a balance between Zeus' expectations and his own sense of right and wrong.
Percy's development would be centered around survival and power. In Tartarus, it's all about being strong enough to endure. So he would be more focused on getting stronger. He might also be more isolated, as not many would understand his Tartarus - born nature. His relationships would be more difficult to form and maintain. He would have to learn to control his powers, which might be more closely related to the dark forces of Tartarus, without being consumed by them.
Percy's character development would be quite different. He would have to adapt to a new family dynamic with Lady Chaos as his adoptive mother. This would bring a whole new level of complexity to his relationships. He might develop a more aloof or mysterious side as he delves deeper into the chaos realm. His powers would not only be enhanced but also transformed in a way that makes him seem more otherworldly. He would have to learn to control his new chaotic powers, which could be a struggle at first. As he progresses, he would become more confident in his abilities but also more aware of the potential dangers of the chaos he now represents. His view of good and evil might also shift as he realizes that in the world of chaos, things are not always so black and white.