A common theme is the clash of different cultures. Naruto's world of shinobi has its own set of values like loyalty to the village, while Arturia comes from a more chivalric and noble - based culture. Their interactions often explore how these different cultural mindsets can either conflict or blend.
Power - related themes are also frequent. Both Naruto and Arturia are very powerful in their respective universes. Fanfictions often play with the idea of them combining their powers, or one learning from the other's power - using techniques. For example, Naruto might learn about the use of a holy sword from Arturia, or Arturia could gain some of Naruto's unique ninja abilities.
Another theme is the idea of destiny. Often in these fanfictions, their being summoned together is seen as part of a greater destiny. For example, in some stories, they are meant to save a certain world or defeat a powerful enemy. It gives a sense of purpose to their relationship. Also, the theme of self - discovery is quite prevalent. As they face challenges together, they learn more about themselves and their own powers. This is especially true for Shirou as he often discovers new aspects of his abilities when paired with Arturia.
One common theme is the power struggle. Given that both characters are strong in their own right, fanfictions often explore how they interact when their powers clash or when they have to cooperate in a situation. For example, they might be forced to work together against a common enemy.
The theme of fate also often appears. Given their roles in the Fate universe, fanfictions may explore how their fates are intertwined. Whether it's a pre - determined meeting or a struggle against the strings of fate that bind them, this theme adds an extra layer of depth to their relationship in the stories.
One common theme is the exploration of loyalty. Shirou is often very loyal to his beliefs and Arturia, whether as a Lancer or not, has her own sense of loyalty. In these fanfictions, they might struggle with conflicting loyalties or find common ground in their loyalty to a cause. Another theme is the power of friendship or love that can develop between them, which often helps them overcome various challenges.
One common theme is the exploration of Arturia's character in different scenarios. Writers often put her in situations that weren't shown in the original work to expand on her personality.
One common theme is the exploration of their relationship in a different gender dynamic. It could be a romantic relationship, where they navigate the feelings in a new way compared to their original male - female counterparts. Another theme is their individual character development as female characters, facing different challenges perhaps due to the change in gender in the Fate universe.
A great idea for this fanfiction would be to explore how Arturia adapts to the ninja world. She would have to learn about chakra and ninjutsu. Maybe she could combine her own magic with chakra to create unique attacks. For example, infusing Excalibur with chakra to make it even more powerful. This would also make for some really cool fight scenes in the story.
I'm not sure specifically about 'lemon' fanfiction (which often implies inappropriate content). However, there are many great Naruto and Arturia crossover fanfictions that focus on adventure, friendship, or their unique abilities combined in a more family - friendly way. You can search on popular fanfiction websites like FanFiction.net or Archive of Our Own and filter for appropriate stories.
Another aspect to consider in this fanfiction is the cultural clash. The feudal - like society in the Naruto world and Arturia's own Arthurian era background. Arturia might find the concept of ninja villages and the way they are structured quite strange. At the same time, Naruto and his friends could be fascinated by Arturia's tales of Camelot and the Round Table.
Well, the theme of acceptance is quite common. They come from different backgrounds and have different personalities. Fanfics show how they accept each other's flaws and differences. Another theme is the power of hope. Their relationship gives them hope in a world full of chaos and danger. They see each other as a source of hope and motivation. And there's also the theme of the past haunting the present. Their past experiences, both good and bad, influence their relationship in the present, and fanfics often explore how they deal with these ghosts from the past.