Well, it could have a plot where Percy discovers his connection to Kaguya through some ancient prophecy. Maybe there are special powers he gains from this heritage that he has to learn to control while still dealing with his regular demigod stuff like fighting monsters and going on quests.
If Percy is a descendant of Kaguya, his powers might change in a way that combines his demigod abilities with some unique Japanese - inspired powers. For example, he could gain the power of illusions, like Kaguya was said to have in some stories. This would be a new and unexpected addition to his combat and survival skills. He could use these illusions to deceive enemies or find hidden paths. Also, his speed and agility might increase, as Kaguya was often depicted as a very graceful and swift figure.
Perhaps a fanfiction where Naruto has a descendant in the future who ends up in Percy Jackson's world. This descendant has some of Kaguya's powers that were passed down through the generations. The story could revolve around how this new character tries to hide their powers at first but then has to use them to fight against the Titans or other threats in Percy Jackson's world, all while trying to find a way back to their own world.
His water - controlling ability as a son of Poseidon could be enhanced with Merlin - like magic. He might be able to turn water into different shapes or even solidify it in more complex ways, like creating ice sculptures with magical runes on them. Also, he could have a new form of precognition related to Merlin's seer abilities, seeing not just the immediate future related to water or battles, but a more far - reaching view of events.
There are definitely some interesting 'Percy Jackson, Descendant of King Arthur' fanfictions. They might take different approaches. For example, one might focus on the lineage aspect, showing how Percy discovers his Arthurian heritage through some mysterious events. Another could be about how his Arthurian blood affects his relationships with other demigods, like Annabeth. You just have to dig around a bit on the fanfic platforms to find the really good ones.
Percy would likely be very cautious at first. He's used to dealing with powerful mythological creatures, but Kaguya is on a whole different level. He might try to use his water powers to his advantage, but Kaguya's reality - warping abilities would be a huge challenge.
One interesting fanfiction could be where Kaguya Otsutsuki somehow ends up in the Percy Jackson universe. Maybe she's mistaken for a powerful Titan or a new type of ancient being. Writers could explore how Percy and his friends would react to her otherworldly powers.
Well, identity is a huge theme. Percy has to figure out how being related to King Arthur fits into his life as a son of Poseidon. Power exploration is also common. He may discover that his Arthurian blood gives him special abilities, like enhanced combat skills or a connection to different magical elements. And then there's the theme of prophecy. Some fanfictions might introduce a new prophecy related to his Arthurian lineage that he has to fulfill, which often leads to grand adventures and challenges.
First, you need to study the lore of all three universes. Know the powers, the characters' personalities, and the important events in Naruto, the story of Kaguya in Naruto, and the world of Percy Jackson. For example, Naruto is known for his never - give - up attitude and his powerful jutsus. Kaguya has god - like powers. Percy Jackson is a demigod with water - related powers. Understanding these is crucial.
His unique ninja skills for sure. Things like his taijutsu, which is his physical combat ability. In a world of demigods who mainly use swords and magic, Naruto's hand - to - hand combat style would be a fresh addition. Also, his chakra control could be seen as a different form of energy manipulation compared to the magic in the Percy Jackson world.