Perhaps there is a prophecy in both the Naruto world and the RWBY world that speaks of a powerful being from another dimension (Naruto in this case) who will come and help balance the forces. Naruto arrives in the RWBY world with his harem - like entourage. The RWBY teams are assigned to work with Naruto's group. As they go on adventures, the RWBY girls start to admire Naruto's strength and his kind heart. Some of them might fall in love with him, leading to a complex web of relationships in this crossover fanfiction.
In a fanfiction, their relationship could also be explored in terms of leadership. Naruto has led his team in many battles and has a sense of responsibility towards his comrades. Raven has her own group and her own way of leading. They could compare and contrast their leadership styles. Maybe they would have some disagreements at first, but as they get to know each other better, they could find a middle ground and lead a combined force against a greater threat in the RWBY universe.
Naruto and Ruby would be really interesting. Ruby is young and full of energy, much like Naruto. They could bond over their shared enthusiasm for protecting others. Naruto could show Ruby some of his cool ninja moves, and Ruby could introduce Naruto to Crescent Rose. Another interesting interaction would be between Sakura (from Naruto's harem) and Weiss. Weiss is from a wealthy family and is very proper, while Sakura is a strong - willed medical ninja. They could have some really fun arguments and also learn from each other's skills.
One idea could be a crossover with another popular anime like Naruto. The RWBY characters could find themselves in the Naruto world and form relationships with the Naruto characters, creating a harem dynamic. For example, Ruby could befriend Naruto and his friends, and some of them might develop romantic feelings for her over time. Another idea is a crossover with a game world, such as the Elder Scrolls. The RWBY girls could explore the vast lands of Tamriel, meet different characters, and have a harem of followers or admirers from different races in the game. Maybe Weiss could attract the attention of some noble elves or powerful mages in Skyrim.
In 'naruto rwby harem fanfiction', a frequent theme is the combination of different power systems. Naruto's chakra - based ninja powers and the RWBY characters' semblances are often pitted against each other or combined in battles. Also, the theme of friendship and loyalty from both Naruto and RWBY is carried over. Since it's a harem - based fanfiction, the theme of love triangles or multiple romantic interests for Naruto among the RWBY girls is quite common too. The fanfictions usually explore how Naruto navigates these complex relationships while also dealing with threats in the new world. This can make for some really interesting and complex storylines that fans enjoy.
One common theme is the clash of cultures. Since Naruto comes from a ninja - based world and RWBY is set in a more modern - fantasy world, there are often scenes where the two cultures collide. For example, Naruto's use of ninjutsu might be seen as strange or powerful in the RWBY world.
If it's a crossover with the Percy Jackson universe, Percy himself could be interested in Ruby. They both have a sense of adventure and a desire to protect their friends. Annabeth might find herself drawn to Weiss because of their shared intelligence and strategic thinking. Leo Valdez could have a crush on Yang due to her mechanical skills and fiery personality. And Nico di Angelo might be intrigued by Blake because of her mysterious nature. These could all be great potential love interests in a RWBY - Percy Jackson crossover harem fanfiction.
The fanfiction of Naruto, Sparda, and RWBY also offers a chance to play with different settings. RWBY's post - apocalyptic - like world, Naruto's ninja villages, and the demon - infested world of Sparda. By merging these settings, authors can create entirely new and immersive environments for their stories, full of adventure and mystery.
One interesting fanfiction could be where the female Naruto character has to adapt to the world of RWBY. She might use her ninja skills in the Huntsman academies. For example, her ability to quickly move and use chakra could be a unique advantage in combat against Grimm. Another aspect could be the interaction with the RWBY characters like Ruby, who is also young and has her own set of skills. They could learn from each other's fighting styles and ways of thinking.
In a 'naruto crossover harem' fanfiction, character development is crucial. Naruto's own development as he adapts to new situations and new relationships is a big part. Also, the development of the characters in his harem is important. They each have their own backstories and personalities that interact with Naruto's. The plot also needs to be engaging. It could involve Naruto and his harem facing powerful enemies, or exploring new and mysterious places. The interactions between the harem members themselves are also an interesting element. They might have rivalries or form strong friendships within the harem.