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.
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.
The Ming Dynasty was a historical novel in the style of biographies. It arranged the important figures and events of the Ming Dynasty in order of time to show the importance and complexity of the Ming Dynasty in Chinese history. In this novel, the feature of biographies was that historical figures were described as independent subjects rather than historical events as basic clues.
The Chronicle of Dayong was a short web novel that was published in the Red Sleeves Adding Fragrance. The author was Meng Diezhuang Porridge. This novel described the story of an otherworldly person who lived in Da Yong. Apart from that, there was also an orange work called " Dayong Chronicle ", which was created by Ru Yu. This work was a novel with a time-travel theme. It told the story of a person who had time-traveled to a thousand years ago. However, the details of the Great Yong Chronicle weren't detailed enough, so he couldn't understand it further.
The first chronicle was the Spring and Autumn Annals, written by Confucius. The Spring and Autumn Annals was a book that used historical events as clues to describe the politics, military, culture, and other aspects of the Spring and Autumn Period in detail. The book was originally a Confucian classic, but it was later widely used in various cultural, philosophical, and religious fields.
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.
One way is to check on popular fanfiction websites. Look for ones with high ratings and a lot of reviews. For example, Archive of Our Own (AO3) has a large collection of AOT fanfictions. You can search for the most popular ones there.