Another theme is loyalty. They are both Soul Reapers, and loyalty to the Soul Society is important. Fanfictions often show how they support each other in their duties, even when faced with difficult situations. For example, when Rukia is in trouble for giving her powers to Ichigo, Byakuya has to balance his loyalty to the law and his loyalty to Rukia.
One common theme is family. Since Byakuya is Rukia's adoptive brother in the Bleach universe, many fanfictions explore the complex family dynamics between them. It could be about Byakuya's over - protectiveness or Rukia's struggle to fit into the Kuchiki family.
One common theme is redemption. Byakuya may have things in his past that he feels he needs to make up for in relation to Rukia. Another theme is family. Since they are related in the Soul Society context, the idea of family and how it affects their relationship is often explored.
One common theme is family. Even though they are not related by blood in the traditional sense, Byakuya has been like a family figure to Rukia. So, fanfics often explore this family - like bond and how it affects their decisions. Another theme is loyalty. Both are loyal to the Soul Society, but their loyalty to each other can sometimes be in conflict with the rules of the Soul Society. This creates interesting plotlines in fanfics.
One common theme is family loyalty. Despite the cold exterior that Byakuya often shows, his loyalty to Rukia as his sister is a central aspect. Another theme is sacrifice. In many of these fanfics, either Byakuya or Rukia is willing to sacrifice for the other's well - being.
One common theme is loyalty. Given their history in the original story, loyalty to each other, whether it's rukia's loyalty to byakuya as her superior or byakuya's loyalty to rukia as someone he cares about deeply, is often explored.
One common theme is loyalty. Byakuya's loyalty to his family, which includes Rukia, is often a driving force in these fics. Another theme is redemption. Byakuya might be redeeming himself for past actions or misunderstandings regarding Rukia.
One common theme is loyalty. Byakuya is bound by his loyalty to the Soul Society and his family, and Rukia has her own sense of loyalty. Their relationship often has to navigate through these loyalties. For example, in many fanfics, Byakuya has to balance his duty to his family's name and his growing feelings for Rukia.
One common theme is the exploration of their unspoken feelings. Since in the original series there's a certain tension between them, fanfictions often delve into what those feelings could be. Another theme is adventure, where they go on missions together and their relationship develops during those events.
One possible plot could be that rukia and byakuya accidentally end up taking care of a baby. They initially struggle as they are not used to this situation. Byakuya with his strict nature tries to impose order while rukia is more lenient. As they care for the baby together, they start to understand each other on a deeper level and their relationship grows stronger.
Yes, it can be quite popular. Many fans of the Bleach series are intrigued by the potential relationship between Rukia and Byakuya. Their complex dynamic in the original series gives a lot of room for fanfiction writers to explore different aspects of their relationship, from a deeper friendship to a romantic love. This allows fans to delve into scenarios that might not be fully explored in the official storyline.
Often, they explore the complex relationship between duty and love. Since they are in a world with strict rules, like in the Soul Society, their love has to navigate around these. For example, Byakuya's position as a noble and Rukia's status as his subordinate initially create barriers.