One popular concept could be characters going back in time to prevent a certain tragic event from happening in the 'bhna' universe. For example, a character might travel back to stop a major villain's rise to power.
Another concept might be time travel for the purpose of self - discovery. A character could go back in time and learn about their own past, their family's history, or the origins of their quirk. This could lead to new character development and relationships.
Some 'bhna time travel fanfic' may explore the idea of alternate timelines. When a character travels through time, they create a new timeline, and the story could focus on how this new timeline differs from the original, and how the character deals with the consequences of their actions in this new reality.
One popular 'bhna fanfic' story could be about an alternate universe where the characters have different quirks. For example, Midoriya might have a quirk related to time manipulation instead of One For All. Another could focus on the relationships between the characters, like a romantic relationship between Bakugo and Uraraka that develops in a really unique way. There are also 'bhna fanfic' that explore the backstories of the minor characters more in - depth.
Katsuki Bakugo, with his powerful quirk and complex personality, could be a character in time travel fanfics. He might go back in time to prove himself even more or to change certain interactions he had with other characters in the past.
One interesting concept is the butterfly effect. In time travel fanfic, a small change in the past can lead to huge differences in the future. For example, a character might go back in time and accidentally prevent their parents from meeting, which would then change their own existence in a drastic way. Another concept is time loops, where a character is stuck repeating the same period of time over and over again, like in the movie 'Groundhog Day'. They have to figure out how to break the loop. Also, alternate timelines are often explored. A time traveler might create a new timeline every time they go back or forward, and then have to deal with the consequences of these new realities.
In Harry Potter fanfic, the idea of using the time - turner in ways not explored in the books is really common. For example, some fanfics have characters using it to repeatedly go back in time to practice spells until they're perfect. Also, the concept of a time - loop, where a character is stuck in a repeating period of time until they figure out how to break it, is quite popular. And then there are fanfics that explore the idea of time travel to different parallel wizarding worlds in different time periods, which is really exciting.
One interesting concept could be the Avengers going back in time to prevent certain events that led to major disasters. For example, they might go back to stop Loki from getting the Tesseract in the first place. This would change the entire timeline and create a whole new set of adventures and challenges for the team.
One interesting concept is seeing how characters use their knowledge of the future to change events in the BNHA world. For example, a character might know about a big villain attack and try to prevent it earlier. Another concept could be the interaction between past and future versions of characters, which can lead to some really cool character development moments.
Another concept is the meeting of different eras in the cloud - time - travel - induced alternate reality. For example, a character from the 21st century could meet and interact with people from the Middle Ages. It creates a lot of opportunities for cultural clashes and exchanges.
The idea of bringing back knowledge from the future is also fascinating. A time - traveler could introduce new technology or battle strategies that were developed later in the story. However, they also have to be careful not to disrupt the timeline too much or cause unforeseen consequences.
One interesting concept is how characters' knowledge of the future could change the course of events. For example, if a character knew about a major battle's outcome, they might take different actions to either prevent or ensure it. Another concept is the impact on the magic system. Time travel could potentially disrupt or enhance the existing magical forces in the world of A Song of Ice and Fire.
In Naruto multiverse travel fanfics, a common concept is Naruto going to a universe where the Fourth Great Ninja War ended differently. Maybe in that world, the villains won and Naruto has to find a way to change things back. Another popular idea is that Naruto travels to a dimension where he has different powers or abilities. He could have the Sharingan in one world or even be a jinchuriki of a different tailed beast. These concepts make the fanfics really interesting.