Another angle could be the creative liberties taken by the author. Fanfictions often deviate from the original story to some extent. In this case, the author might have added unique plot twists, new characters related to Kaiba and Anzu, or different power dynamics that make the story stand out from the official 'Kaiba and Anzu' narrative.
Well, the story mainly focuses on the return of an old foe. Yugi and the gang are drawn into a series of events that lead them to discover more about the Dark Side of Dimensions. This includes new and powerful cards, and duels that test their skills like never before. There are also elements of mystery and a struggle to maintain balance in the world of Duel Monsters.
One common theme could be the exploration of the complex relationship between the characters involved in the Prideshipping. It might also touch on the darker aspects of their personalities as hinted by 'Dark Side of Dimensions'. Another theme could be adventure, with the characters embarking on quests or facing challenges within the context of this fan - made universe.
First, study the original material about dimensions. Understand the basic concepts, the rules that govern them, and the existing characters. This knowledge will be the foundation for your fanfiction.
One reason is the unique world - building. In 'dark side of dimensions fanfiction', writers can expand on the already rich concept of dimensions in ways the original might not have. They can introduce new rules, strange creatures, and uncharted areas of these dimensions. It gives a sense of mystery and discovery that readers find appealing.
Yugi's friends like Joey, Téa, and Tristan could also be main characters. They have always been an important part of Yugi's life and the dueling story. In the epilogue, they might be involved in helping Yugi with some new challenges or they could have their own storylines related to the dueling world.
One possibility is that it delves deeper into the mysteries that were left unsolved in the movie. It could explore the origin of some of the powerful cards or the true nature of the dark forces that were hinted at. The fanfiction might also introduce new characters who are related to the existing ones, like a long - lost relative of Kaiba who has some secrets about the Millennium Items.
Perhaps there is a plot point where the relationship between Kaiba and Anzu changes in a significant way. Maybe they have to rely on each other more than they ever did before, leading to a deeper understanding of one another.
First, you need to have a good understanding of the characters from the original source. Know their personalities, backstories, and relationships. Then, think about how the 'Dark Side of Dimensions' concept can be incorporated. Maybe start with a scene that sets the tone, like a dark and mysterious encounter between the Prideshipping characters.