Maybe Suzaku travels to a future time where the world has been completely changed. He has to find out what caused this change and if there's a way to reverse it. He discovers that in this future, his actions in the past had unforeseen consequences. He teams up with a group of rebels who are fighting against an oppressive regime. Suzaku uses his combat and strategic skills to help them. Along the way, he uncovers secrets about the time - travel technology itself and realizes that he might be the key to restoring the world to a better state.
In a strange turn of events, Suzaku was given a magical talisman that had the power of time travel. He activated it without really knowing what it would do. He was sent to a time of great chaos and war. There were battles everywhere. Suzaku decided to use his skills to try and bring peace. He joined one of the armies, not as a fighter but as a strategist. He introduced new battle formations and ways of communication. His ideas were initially met with skepticism but as they started to work, he gained respect. He also fell in love with a local healer who helped him understand the true meaning of the time he was in. And all the while, he searched for a way to reverse the time travel and go back to his own time.
The Suzaku time travel car in fanfiction might have adventures related to saving the world. Maybe it travels to a time when a great disaster is about to happen. The heroes in the story could use the car to go back and prevent the cause of the disaster, like stopping a mad scientist from creating a doomsday device.
It could function by using some sort of advanced energy source. Maybe it harnesses the power of a rare crystal or a special form of energy that exists in different time periods. For instance, it might collect temporal energy as it travels through time to keep its systems running.
Another idea is that they travel to a time just after the end of the First Wizarding War. There is chaos and rebuilding going on. Harry and Teddy could be on a mission to retrieve a powerful magical artifact that was lost during the war. Along the way, they meet survivors of the war and learn about the true cost of the conflict. Teddy, who has grown up in a post - Voldemort world, is deeply affected by the stories of those who lived through the dark times.
One possible plot could be that Boruto and his friends travel back in time to the era of the original Naruto series. They might meet the younger versions of their parents and other iconic characters. This could lead to some comical situations, like Boruto trying to teach his young father some new jutsu techniques he learned in the future, not realizing it might disrupt the timeline.
One possible plot could be that Natsu and Erza are sent back in time to a crucial moment in the history of their guild. Maybe they go back to the time when the guild was first founded. They could end up having to protect the founders from a threat that was long forgotten in their own time. This would give them a chance to see how the guild started and also change some things for the better in the present.
One possible plot could be that Natsu and Mira accidentally stumble upon a magical artifact that sends them back in time. They might end up in a time when Fairy Tail was just being founded. There, they could meet the younger versions of their guildmates and have to work together to make sure the guild's history unfolds as it should, while also trying to find a way back to their own time.
One possible plot could be that Sakura and Neji are sent back in time to the founding of their village. They use their modern knowledge of jutsu and combat to change some key events that lead to a better future for the village. For example, they might prevent a certain war from starting or help in the development of more advanced ninja techniques earlier.
The plot might involve Sakura and Hashirama working together to prevent a great disaster. Maybe there was a powerful and evil being that was sealed away in Hashirama's time, but in Sakura's future, signs of its return start to show. So when Sakura travels back, they join forces. Hashirama could learn from Sakura's advanced combat techniques, and Sakura could learn from Hashirama's unique wood - style jutsu. They might also have to face challenges from within the village, as some people are suspicious of Sakura and her motives.
A simple plot could be that Shirou accidentally activates Excalibur's time - traveling ability. He finds himself in Camelot and has to adapt to the new environment. There, he meets King Arthur and other knights, and his knowledge from the future helps him in various challenges while also learning about the true power of Excalibur.