In a fanfiction about Percy and Artemis' secret affair, it could start with Artemis taking an interest in Percy because of his unique abilities. Percy, on the other hand, is in awe of Artemis' power and beauty. Their secret meetings could be in the form of dreams at first. They communicate through their dreams and gradually fall in love. However, they know that their relationship is against the norms of the gods. So, they have to keep it a secret. Their story could be full of tension, as they are constantly on the verge of being discovered, and also full of deep emotional moments as they explore their feelings for each other.
Percy and Artemis might communicate through encrypted messages. Since Percy has some knowledge of ancient languages from his demigod training, and Artemis is a goddess with vast knowledge, they could create a code that only they can understand. Also, they could meet during times when everyone else is distracted, like during a big festival in Olympus when all the gods are busy. They would have to be very careful about their body language when they are in public together, not giving away any hints of their relationship.
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.
One possible plot could be Percy having to defend Artemis from a new and powerful enemy. Maybe a primordial being has awakened and is targeting Artemis. Percy, with his skills and the help of his friends, must fight this enemy. He could also have to deal with the politics among the gods as he tries to protect Artemis, since some gods might not be so happy about his interference.
In this fanfiction, it could be that Artemis is in a situation where she is about to be killed or lose her powers forever. Percy, being the selfless hero he is, takes on a deadly task to prevent that from happening. Maybe it involves facing an ancient and malevolent god who has a vendetta against Artemis, and Percy uses his unique abilities and the element of surprise to try and stop this god, but at the cost of his own life.
The plot might involve a prophecy that somehow links Percy and Artemis. This prophecy could bring them together in a journey across different realms. Along the way, Percy discovers a new side of Artemis, one that is not just the cold and distant goddess. Artemis, too, sees Percy's loyalty and selflessness. Their relationship evolves as they face numerous challenges and obstacles, and they realize that their love is something that is fated and cannot be ignored.
The plot could start with Percy being sent on a mission that somehow intersects with Artemis's territory. Maybe he's looking for a powerful magical item that Artemis also has an interest in. At first, they might be at odds, with Artemis seeing Percy as an intruder. But as they face challenges together, like fending off a horde of mythical beasts, they start to respect each other. Percy's ability to think on his feet and Artemis's strategic mind work well together. Eventually, they realize they have more in common than they thought and form a friendship based on mutual respect and shared goals.
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.