In fanfiction, their friendship can be shown through small, everyday moments. For example, Ichigo sharing his human world experiences with Rukia, like the taste of different kinds of food. Rukia, in turn, could tell him about the unique traditions in the Soul Society.
One great aspect of Bleach Ichigo and Rukia fanfiction is the exploration of their relationship beyond the original story. Writers often delve into their deep bond, showing how they support each other in different situations. It could be in the face of new threats in Soul Society or just in their daily lives. Fanfiction gives a chance to expand on their characters and how they interact, which is really interesting for fans of the series.
A common theme is the power - up. Fans like to write about Ichigo and Rukia getting new powers and how they use them together. For instance, Ichigo might master a new form of his Zanpakuto and Rukia could gain a new Kido spell. They then use these new abilities to fight stronger enemies.
There could be a love story where Ichigo has a time - travel adventure and meets a version of Orihime from the past. This Orihime is different in some ways, yet still has the same kind heart. Ichigo has to keep his identity a secret at first, but as they interact more, he can't help but be drawn to her. She also feels a strange connection to this mysterious boy. As Ichigo tries to find his way back to his own time, he realizes that he has fallen in love with this different - yet - the - same Orihime, and the story becomes a race against time and his own heart.
Well, Ichigo could have a love story with Rukia. They have a very deep bond. Rukia is the one who first introduced Ichigo to the world of Soul Reapers. Their relationship is complex. There are moments of intense connection and understanding between them. They've fought side by side many times, and through these shared experiences, a form of love could develop. It might not be the typical romantic love at first, but it could grow into a deep and abiding love over time.
Another idea is that they team up to solve a mystery within the Soul Society. Maybe there are some strange disappearances of lower - level shinigami, and Ichigo and Rukia put their heads together. Rukia uses her knowledge of the Soul Society's inner workings, and Ichigo his unique perspective as a human - turned - shinigami - like - being. This would highlight their different strengths and how well they can collaborate.
He could fit as a powerful outsider. His power level is extremely high with Mugetsu, so he'd be a force to be reckoned with. Maybe he'd be seen as a wildcard by the different groups in DxD.
Perhaps in the 'ichigo travels back in time bleach fanfiction', Ichigo travels back to the time when the Soul Society was in a more fragile state. He could use his knowledge from the future to help strengthen the Soul Society against upcoming threats, like Aizen's plans. He might train the younger versions of the Soul Reapers and form new alliances that would change the future battles.
Another theme could be the exploration of their different worlds. Ichigo is from the human world and Soul Society, while Halibel is from Hueco Mundo. Fanfictions might delve into how they bridge the gap between these two very different realms, perhaps through mutual understanding and cooperation. This can lead to interesting stories about cultural exchange in a sense, within the 'Bleach' universe.