Jugo Crossover Fanfiction refers to fan - created works where the Jugo world intersects with different fictional worlds. Fans often write these to satisfy their creativity and desire for unique combinations. They might bring in different settings, powers, or relationships from other franchises. It's a way for fans to put their own spin on the Jugo world and expand its possibilities.
I don't know the exact Jugo back story as the name is very general. It could be a story about a person named Jugo who had an interesting life. Maybe he was an adventurer or an artist.
Toge Inumaki is important too. His special cursed speech ability makes him stand out. Also, the principal of the school, Masamichi Yaga, is likely to be important as he is in a position of authority and has an influence on Gojo and the other students. There could be other characters like the members of different clans that also play roles in the complex web of the story.
I'm not sure specifically which 'Jugo back story' you are referring to. There could be many things named Jugo. It could be a character in a game, a brand, or something else. You need to be more specific.
One interesting Naruto and Jugo fanfiction could be about their unlikely friendship outside of the main plot. For example, they meet in a forest and start to understand each other's powers better. Jugo's curse mark and Naruto's Nine - Tails chakra could have some sort of connection in this story.