A plot might involve Vegito time traveling to the time of the Cell Games. He could join the fight against Cell and show off his incredible combined powers in a way that completely alters the course of the battle. Maybe he'd be able to defeat Cell without Gohan having to reach his Super Saiyan 2 form.
One possible plot could be Vegito traveling back to the time when the Saiyans were still under the rule of King Vegeta. He could try to change the Saiyan's aggressive nature, which would have a huge impact on the entire universe's future.
One possible plot is that Jekyll travels forward in time to see the long - term consequences of his actions. He might be horrified to find a world where Hyde has completely taken over, or he could be surprised to see that his struggle has inspired future generations to study dual personalities. This would give him a new perspective on his own situation.
Well, if it's a Vegito time travel fanfiction, Vegito might travel to the future. He could see how the Saiyan race has evolved or devolved. He might also encounter new threats that he has to deal with, and in the process, he could gain new powers or forms. It would be an exciting adventure filled with battles and self - discovery.
A possible plot could be that a young Japanese student in 2015 discovers an old family heirloom that has the power to time - travel. He uses it to go back to the time when his grandparents were young and tries to understand his family's history better. Along the way, he discovers secrets about his family and the development of Japan over the years.
One possible plot could be Obama time - traveling to the era of the Great Depression. He might use his knowledge to try to speed up the economic recovery, interacting with Roosevelt and other key figures of that time.
One popular plot is when Sasuke and Naruto accidentally get sent back to their academy days. This gives them a chance to correct misunderstandings from the start and perhaps form a closer bond earlier. Another plot could be that Naruto travels forward in time and sees a future where Sasuke has gone down a dark path, and he has to go back to change things.
A possible plot in Jiraiya time travel fanfiction could be Jiraiya traveling back to the time when the Uchiha clan was still intact. He could try to prevent the massacre, which would have a huge impact on the Naruto story. This would change the relationship between Sasuke and Naruto, as Sasuke's motives for revenge would no longer exist.
Another plot could be that they travel to a future time where music has evolved into something completely different. They struggle to understand the new forms of music but also bring back some of the old charm from their time, creating a unique blend that revolutionizes the future music scene.
One interesting plot could be traveling back in time to the era when the Portal was first created. The protagonist could try to prevent certain events that led to the creation of the dangerous test chambers. For example, they might stop the initial, unethical experiments on sentient beings. This would change the whole course of the Portal universe and create a new future.
Well, in some time travel Kakashi fanfictions, there's a plot where Kakashi goes back in time right after Obito's 'death'. He tries to save Obito in a different way, not just by taking his eye. He could change the whole course of events that led to the formation of Akatsuki and the many tragedies that followed. This would completely rewrite the story of Naruto in many ways.
One popular plot could be Ichigo traveling back in time to prevent a major event in the Soul Society's history that had a negative impact. For example, he might go back to stop Aizen's early machinations. Another plot could involve Ichigo traveling forward in time to see the future of his friends and the world he's protecting. He could then come back to the present and work towards a better future. There could also be a plot where Ichigo time travels to different alternate universes where things are very different for him and his friends, like in one universe he never became a Soul Reaper and has to figure out how to get back to his own reality.