Fanfiction about Ichigo traveling back in time: What are some interesting plot ideas?

They could time travel to a period in Soul Society's history when there was a great war against a powerful enemy. Ichigo's modern fighting skills and Rukia's knowledge of Soul Society could be combined to change the outcome of the war. Or perhaps they travel to a time when Hollowfication was first discovered. They might be able to prevent some of the tragedies that occurred as a result of it. Also, they could time travel to an era where Quincy were more powerful and had a different relationship with the Soul Reapers. This could lead to new alliances or conflicts in the story.

Maybe fem Ichigo has a different set of powers compared to Ichigo. In the fanfiction, they could train together to combine their powers in a unique way. For example, her powers might be more focused on defense while Ichigo's are on offense, and they learn to complement each other. This could lead to some interesting character development as they overcome their differences and work towards a common goal.

One idea could be that Harry travels back to the time when Voldemort was still at Hogwarts as Tom Riddle. He could try to expose Tom's true nature early on, preventing all the future disasters. Another plot could be Harry going back to the time when his parents were killed and using his knowledge of magic to save them, and then seeking revenge on those who supported Voldemort at that time.

Maybe in the fanfiction, Ichigo gets lost in Hueco Mundo and Halibel finds him. Instead of attacking, she decides to help him find his way back. During their journey, they encounter various challenges and secrets about Hueco Mundo are revealed to Ichigo through Halibel. This could lead to a new understanding between the two species they represent.

Well, a possible plot could be that Bambietta loses her memory and Ichigo finds her. He decides to help her recover her memories while protecting her from those who would use her amnesia to their advantage. Or perhaps they meet in a parallel universe where the rules of their powers are different, and they have to figure out how to work together to get back to their own universes. Also, a story where they are both given a quest by a mysterious entity, and in the process, they learn more about each other's pasts and motives.

One idea could be that Muramasa and Ichigo are forced to team up against a new and powerful enemy. They start off distrusting each other but as they fight side by side, they come to respect one another's skills.

One plot idea could be Ichigo and Kukaku teaming up to fight a new and powerful Hollow. They could combine their unique abilities, like Ichigo's Zanpakuto skills and Kukaku's fire - based attacks. Another idea is a story where Ichigo has to protect Kukaku from an unknown threat within the Soul Society. Maybe there's a conspiracy and they have to uncover the truth together.

One idea could be exploring the wife's time travels to different historical events not shown in the original. For example, she could travel to the signing of the Declaration of Independence. Another could be a story where the husband also gains the ability to time travel briefly and they have to figure out how to manage their travels together. And perhaps a plot where the wife travels to a future time and sees how their relationship impacts future generations.

Perhaps Ichigo could travel to a future version of the academy that has been taken over by a powerful enemy. He then has to find a way to go back in time and prevent this from happening in the first place. He could also learn new powers in this future academy that he brings back with him to his own time.

One interesting plot could be Ichigo going back in time and preventing certain tragedies that happened in the original story. For example, he might stop the death of a beloved character, which would then change the entire course of events and relationships in the Bleach universe.