There's 'Yuji and Nobara: Unseen Connections'. This fanfic delves deep into their friendship that could potentially turn into something more. It has some really interesting scenarios where they rely on each other's strengths and learn from their weaknesses.
In a fanfiction, the plot could revolve around Yuji and Nobara being sent to a different dimension. In this dimension, the rules of jujutsu are different. They have to adapt quickly and find a way back home. During their time there, they meet strange versions of their friends and enemies. They must use their wits and powers to survive and figure out how to return to their own world. This experience changes their relationship and makes them stronger as a team.
One idea could be a story where Yuji and Nobara go on a special mission together in an unknown location filled with new types of curses. They have to rely on each other's strengths more than ever.
Their interaction might be significant as it could drive the plot forward. For instance, every conversation or shared moment between them could lead to new developments in the story.
Love and friendship are key elements. Their relationship, whether it's budding romance or deep friendship, is often at the center. For example, in many fanfics, Yuji's kind nature helps him to understand Shana better, and Shana's protectiveness towards Yuji shows their bond.
The theme of self - discovery is also prevalent. Both Shana and Yuji are complex characters. In fanfictions, they often learn more about themselves as they interact with each other. They discover new aspects of their powers, personalities, and values, which in turn affects their relationship.
One common theme could be friendship. Given the nature of the characters in 'inu x boku ss', the fanfics might explore the deepening of friendships between the characters. For example, Nobara and other characters might have storylines that revolve around how they become closer friends and support each other.