One possible fanfiction idea could be that Ruby's older brother is a mysterious figure who has been away on a long - term mission. He could possess unique powers that are different from Ruby's, like the ability to manipulate time in small bursts. This would add an interesting dynamic to the RWBY universe as it could potentially change the course of battles or events in the story.
Yes, in some RWBY fanfictions, Naruto can be depicted as Ruby's pet. Fanfiction allows for creative crossovers like this where characters from different universes interact in unique ways.
Another possibility is that he could be the brother of Weiss. Weiss comes from a wealthy and proper family. Naruto's more free - spirited and unorthodox ways would clash with Weiss's upbringing at first, but they could grow to understand and support each other as the story progresses.
He could be a mentor. Since he's older, he might have more experience and knowledge. He could train Ruby and her team, teaching them new combat techniques or how to better use their semblances.
In the fanfiction, Naruto and Ruby could have some really interesting exchanges. For example, Naruto might share his dreams of becoming Hokage with Ruby, and Ruby could respond with her own big dreams in her world. Also, when they face a dangerous situation together, Naruto might use his shadow clone jutsu to distract the enemy while Ruby makes a strategic move. Their different abilities and personalities would lead to a lot of unique back - and - forth interactions, like Naruto's loud and enthusiastic reactions to Ruby's more calm and calculated plans.
One common theme is the clash of different power systems. Naruto has chakra - based powers like ninjutsu and taijutsu, while RWBY has semblances and the use of Dust. Writers often explore how these different powers interact.
Another theme is friendship across different universes. Ruby forms new relationships with Naruto and his friends. They learn from each other, support each other in battles, and grow as characters. It's about how two very different groups can come together for a common goal.
One interesting crossover could be Ruby using Naruto - style jutsu in the RWBY universe. For example, she might use the Shadow Clone Jutsu to confuse Grimm. Another could be Naruto characters being transported to Remnant (the RWBY world) and having to adapt to the different combat styles and Dust - based technology. Ruby could learn from Naruto's determination and his way of never giving up in battle.
Well, Ruby could be a healer. Naruto's brother might get seriously injured in a battle, and Ruby uses her healing powers to save him. This creates a bond between them, and they start to train together. Ruby teaches him some new techniques she has, and he in turn shows her the ways of the ninja in the Naruto world.