I'm not sure specifically as I haven't read it. But generally, a Naruto x RWBY fanfiction might involve characters from Naruto and RWBY universes in a story where one of the main characters is a janitor. It could be about how this janitor character gets involved in the adventures or events that are typical in both Naruto and RWBY worlds.
Since it's a Naruto x RWBY fanfiction with a janitor as a central figure, it might start with the janitor's ordinary life in a world that combines elements of both Naruto and RWBY. He could be cleaning up in a place where strange things start to happen. Maybe he discovers a hidden portal or an ancient artifact. As the story progresses, he might encounter Naruto - like characters with their chakra powers and RWBY characters with their weapons and unique abilities. The fanfiction could explore how he navigates this strange new world filled with these different kinds of powers and personalities, and how he uses his own wits and any latent powers he might have to make a difference.
You could try looking on fanfiction websites such as Archive of Our Own (AO3) or FanFiction.net. These platforms have a large collection of fanfictions and there's a good chance you'll find it there.
Well, one possibility could be that Naruto, as a janitor, stumbles upon some dark secrets in the Fate universe while cleaning up. Maybe he discovers a hidden room with a powerful and dangerous magical artifact that's crucial to the overarching plot of the Fate world. And his simple janitor life gets turned upside down as he becomes a target for various factions who either want to use him to get to the artifact or silence him.
One interesting RWBY x Naruto crossover in fanfiction could be where the characters' abilities are combined in unique ways. For example, Ruby's speed and Naruto's shadow clone technique could be used in a joint combat strategy. Another aspect could be the cultural exchange between the two universes, like how the ninja world of Naruto would react to the technology in RWBY.
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.
One common theme is the fish - out - of - water situation. Naruto, coming from his own world, has to adapt to the RWBY world. This often leads to humorous and interesting situations. For example, he might be confused by the different technology or magic systems in RWBY.
One common theme is the clash of cultures. Naruto comes from a shinobi world and Blake from the RWBY universe, so there's a lot of exploration of how their different values and ways of life interact. Another theme is friendship. They often start as strangers and gradually become friends as they face challenges together.
A common theme is the clash and fusion of different powers. Naruto has his chakra - based ninjutsu and Summer has her own combat style. Fanfictions often explore how these powers can be combined or used in new and interesting ways.
One tip is to first be familiar with both Naruto and RWBY universes. This helps you understand the characters better. For example, knowing Naruto's goal of becoming Hokage and Ruby's dream of being a great huntress. Another tip is to look for well - rated fanfictions. High ratings often indicate good writing and interesting plotlines.
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.