The Titans could also serve as antagonists. If they sense that the union of Percy and Artemis could strengthen the power of the gods, they would do everything they can to stop the marriage. They could send their minions to attack Percy and Artemis, or they could try to corrupt one of them, perhaps by offering Percy great power in exchange for abandoning Artemis, or by making Artemis believe that Percy will bring destruction to her followers if she marries him.
A plot could revolve around the cultural clash between Percy, a demigod used to a more modern and sometimes chaotic world, and Artemis, a goddess with her own very strict and ancient ways. The arranged marriage forces them to navigate this. Maybe Percy tries to introduce Artemis to things like modern music or movies, which she initially scoffs at but later starts to enjoy. In the process of trying to make the best of the situation, they could also face challenges from other mythological creatures who see their union as a threat to the existing order of the mythological world.
Naruto is very outgoing and extroverted. He loves being around people and making friends. Artemis, on the other hand, is more reserved and independent, used to living in seclusion with her huntresses. So Naruto might constantly try to include Artemis in social situations that she would rather avoid.
Their relationship might develop through facing external threats. For instance, if there are enemies that target them because of their forced union. They would have to rely on each other's skills. Percy's ability to control water and his combat skills, along with Artemis's archery and connection to the wild, could be used to fend off these threats. As they fight side by side, they start to see each other in a new light and develop a bond.
One idea could be that Naruto is thrust into an arranged marriage with Artemis. Since Artemis is a goddess in Greek mythology, there could be a lot of cultural clashes. Maybe Naruto has to learn about Greek customs and the ways of the gods. Another plot could involve Naruto trying to gain Artemis' respect in this new situation, as she is a powerful and independent figure. He could use his ninja skills to prove his worth to her.
Another theme is the growth of their relationship. They usually start off as strangers or even enemies in some cases, but as they are made to be together, they gradually learn to understand and care for each other. This can involve dealing with family drama, as their families might have different expectations from the marriage. For example, in some fanfictions, their families are trying to gain power through this union. And also, they might face external threats or challenges that bring them closer together.
One common trope is the 'Reluctant Partners'. Percy or the other character involved is usually very reluctant about the arranged marriage at first. They might resist it and try to find a way out. For example, Percy might think it goes against his free - will and his loyalty to his friends and previous relationships.
One really interesting Percy Jackson arranged marriage fanfiction is 'The Forced Bond'. It explores how Percy and Annabeth are forced into an arranged marriage by the gods for some political reasons. It's full of their usual banter but with the added tension of the arranged situation.
I really like the fanfic 'Percy and the Prince's Arrangement'. It takes the concept of an arranged marriage and flips it on its head. Percy is hesitant at first, but as the story progresses, he realizes that there's more to the prince than he thought. The author does a great job of building the relationship slowly, with lots of moments of doubt and discovery.
A Percy Jackson and Artemis marriage fanfiction could be quite interesting. Firstly, the power dynamics would be complex. Percy has his own powers from being a demigod, and Artemis is a powerful goddess. Their marriage might cause chaos in the demigod and godly worlds. The other gods might be either envious or outraged. Artemis' hunters would also be in shock. In the story, Percy might have to prove himself worthy to Artemis' followers over and over again. And they would have to face many challenges together, like fighting against ancient monsters that rise up because of their union.