A very common theme in AOT time travel fanfiction is redemption. Characters who made mistakes in the original storyline get a chance to go back and make things right. Also, the exploration of alternate timelines is quite popular. Writers like to show how different choices made during time travel can lead to completely different outcomes for the AOT world. It adds an element of mystery and 'what - if' scenarios that readers find really engaging.
Eren is often a popular choice. Since he has such a central role in the original story, seeing him interact with the past or future in a time - travel scenario is really interesting. He could go back and try to change things before he made certain decisions that had far - reaching consequences.
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 popular AOT time travel fanfiction is 'Back to the Walls'. In it, the main character travels back in time and tries to change the course of events in the AOT world. Another great one is 'Time's Intervention' where a character from the future goes back to prevent certain tragedies.
Another explanation could be that Teddy discovers an ancient and forgotten spell or artifact. He stumbles upon it while exploring some old wizarding ruins or in the Hogwarts library. This spell or artifact gives him the power to travel through time. And as he's always been an adventurous and curious character, he decides to use it to explore different time periods.
It's fairly common. Fans often look for more content related to their favorite shows. Since 'Attack on Titan' has a large and passionate fan base, there are a lot of fanfics available. 'Aot' fans might watch (read) these fanfics to explore different scenarios that the official story didn't cover. For example, they might want to see how a certain character would react in a different situation or what would happen if a major plot event had a different outcome.
The main storyline of " Full-time Mage " was revealed. In the novel " Full-time Mage," the main storyline referred to the war between humans and demons. At the beginning of the novel, Mo Fan was attacked by a Magical Beast, which awakened his magical abilities and began his journey of magic cultivation. During the process of cultivation, Mo Fan gradually understood the existence and threat of demon creatures, as well as the war between humans and demon creatures. As the story progressed, Mo Fan gradually grew into a powerful Magician. He formed a team with other Magicians to fight against the threat of the Magical Beasts. At the end of the novel, Mo Fan and the others had successfully stopped the invasion of the demon creatures and protected the homeland of the humans.
While waiting for the anime, you can also click on the link below to read the classic original work of " Full-time Expert "!
There could be various fanfictions. Maybe some that focus on alternative endings, like ones where certain characters survive who didn't in the original. For example, a fanfiction where Erwin survives and leads the Scouts in a different way.
It could mean that a person who is a fan of 'Attack on Titan' (AOT) is reading or watching fan - created fictional works related to AOT. Maybe they are interested in seeing different interpretations or storylines that fans have come up with.