In this fanfiction, it could be that Artemis is under a curse. The curse makes her target Percy without her full understanding of why. Percy is hunted, and he realizes that the only way to break the curse on Artemis is to find the source of it. He embarks on a journey, all the while being chased by Artemis. Along the way, he discovers secrets about the gods and himself, and eventually, he manages to break the curse and turn Artemis back to her normal self.
One possible plot could be that Percy has unknowingly offended Artemis in some way. Maybe he accidentally disrupted one of her hunts or desecrated a sacred place of hers. As a result, Artemis decides to hunt him down. Percy then has to use his wits and powers to avoid her arrows and find a way to make amends.
His friends from Camp Half - Blood could help him. For example, Annabeth. She's smart and could come up with strategies to avoid Artemis. Also, Grover, with his ability to sense danger and his nature - related powers, might be able to lead Percy to safe places.
Percy could try to blend in with mortals. Since Artemis mainly hunts supernatural beings, if Percy could disguise himself well among mortals, he might be able to escape her notice. He could also call on his friends like Annabeth. Annabeth is very clever and might come up with a plan to trick Artemis. Maybe set up false trails or create illusions to mislead the hunters.
One possibility is that Percy grows up with a strong sense of independence and a connection to nature. Since Artemis is the goddess of the hunt, Percy might be trained in hunting and survival skills from a young age. He could also have a special bond with the animals in the forest, being able to communicate with them to some extent. This upbringing would likely make him a formidable fighter, not just with a sword but also with bows and arrows and stealthy combat techniques.
One possibility could be a very unorthodox take on the mythological world. Maybe it involves some powerful magic or a strange prophecy that defies the normal rules. Artemis, being a virgin goddess in the original mythology, giving birth would be a huge deviation. It could start with some sort of interference from a powerful and dark force that manipulates events to make this happen. Percy might then grow up with a unique set of powers and a connection to both Artemis and his own demigod heritage in ways that are completely different from the normal Percy Jackson stories.
In this scenario, Percy would be in a very tough situation. Artemis is a powerful goddess. Percy might have to use all his skills and the help of his friends. He could try to reason with Artemis first. Maybe he'd show her that he's not a threat to her or her hunters. If that doesn't work, he'd probably have to run and hide in places where her powers are limited. For example, in areas protected by other gods who don't want Artemis to overstep.
One possible plot could be that Percy has somehow angered the gods, perhaps by accidentally disrupting a major ceremony. As a result, they send various mythical creatures to hunt him down. He has to use his wits and demigod powers to outsmart them and find a way to make amends with the gods.
One possibility is that Artemis has been misinformed. Some enemy of Percy has tricked her into thinking that Percy is a danger to the demigods. So she kidnaps him to stop him from causing harm. But as she keeps Percy captive, she slowly realizes that she has been deceived when Percy starts to explain his side of the story and the real threats he has been fighting against.
One possible plot could be Percy getting caught in one of Artemis' hunts by accident. They initially clash due to their different natures but gradually develop feelings for each other.
A plot could be that there's some sort of dark magic that is affecting the balance between the gods and the demigods. Artemis and Percy are brought together to combat it. Along the way, Percy shows a side of himself that Artemis is drawn to. His courage and selflessness intrigue her. And in a moment of vulnerability, Artemis kisses Percy. This kiss then becomes a catalyst for a deeper exploration of their relationship and the greater threat at hand.
One possible plot could be that Artemis is captured by some powerful ancient enemy, like a primordial being. Percy, with his skills and courage, embarks on a quest to find her. He might face various challenges and monsters along the way. Maybe he has to solve some riddles related to the moon, as it's Artemis's domain. Finally, he locates Artemis and uses his water powers in a creative way to defeat the captor and free her.