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.
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.
" Celebrating Years " was a popular historical novel. The author was Maoni. It was published on Qidian Chinese website and was loved by readers. The story described how Fan Xian fell into a huge conspiracy when he transmigrated, and this book described how he broke through the situation along the way. The readers could read or listen to books on the Qidian Reading App. Now, they could also obtain experience members by going to Qidian Reading App. On the Qidian Reading App, readers could read authentic books and listen to authentic audio. The male lead was Fan Xian. He valued relationships and righteousness, had a sense of humor, had upright values, and was a powerful martial artist. The female lead was Lin Wan 'er. She was innocent, knowledgeable, and polite. She was a typical lady.
" Celebrating Years " was a television series adapted from a web novel. It told the story of a modern youth, Fan Shen, who had traveled to the human world tens of thousands of years in the future. In a dynasty called the " Qing Kingdom," he was reborn as " Fan Xian," and triggered a series of stories. As a modern person, Fan Xian brought with him the memories of his previous life and the spirit and will of a modern person. He clashed and flipped with the old royal system of a feudal country. This play was full of dramatic tension and aesthetic pleasure in the narrative arrangement and story line construction. However, the search results did not provide any information about the modern part of Celebrating Years.