Obviously, Yugi and Yami are the most popular. They are the main characters and their relationship is central to the story. Writers often like to explore their bond further, whether it's in a more emotional or action - packed way.
Kaiba is also a very popular character to focus on in fanfiction related to this. His rivalry with Yugi and his own journey in the Dark Side of Dimensions can be really interesting to write about. He has his own motives and goals that can add a lot of depth to a fanfiction. You could write about how he uses his resources and intelligence to deal with the challenges in that dimension.
Pegasus is another character that can be great to focus on. His connection to the Millennium Items and his knowledge of the Dark Side of Dimensions could be explored. Maybe a fanfiction where he has a hidden agenda in the Dark Side of Dimensions and Yugi and Yami have to figure out what it is. His unique abilities and personality make him a fascinating character to write about in this context.
One idea could be exploring an alternate ending where Yugi and Yami have to face a new threat in the Dark Side of Dimensions that was hidden all along. Another could be a story about their friendship growing even deeper during an adventure in that dimension. Maybe a fanfiction where they meet new characters who have unique powers and they have to team up with them to save both worlds.
Yugi is always an interesting character to focus on. After the events of 'Dark Side of Dimensions', he has a new level of maturity and experience. His relationship with the spirit of Atem has also changed, so exploring his thoughts and feelings about that would be great. Another interesting character could be Seto Kaiba. He's always been a complex character, and in the post - movie world, his drive for power and his rivalry with Yugi could take on new dimensions. And don't forget about the new characters introduced in the movie. They have a lot of potential for development in fanfiction.
One underrated character is Shadi. He has a mysterious past and his abilities could be explored more in fanfiction. You could write about his connection to the spirit world and how it might affect the events in the Dark Side of Dimensions. Maybe he has some hidden powers or knowledge that could change the course of the story.
There are likely other characters like his friends who support him during the duels. They may not be as powerful as Yami Yugi in dueling but contribute in other ways, such as providing moral support or helping him find rare cards.
Julian Blackthorn is often a popular choice. His complex personality, his love for his family, and his struggle with the dark side of his nature make him an interesting character to explore further. Writers can delve into his relationship with Emma in different scenarios or his journey as a shadowhunter.
One popular character paired with Yami Yugi is Tea Gardner. In fanfiction, they often have a deep connection that goes beyond friendship. Their shared experiences in the world of Duel Monsters can form the basis of a romantic relationship.
Sasuke is often a popular character in Naruto dark side fanfiction. His natural brooding nature and his own internal struggle with power and revenge can be easily explored in a darker context. Another one is Itachi. His complex backstory and the secrets he held can be further delved into in a darker version of the Naruto world.
Darth Vader is often a very popular character. His iconic status in the Star Wars universe makes him a natural fit for fanfiction about the dark side of the Force. Another popular one is Darth Maul, with his menacing appearance and unique fighting style. Kylo Ren is also quite popular as he represents a more conflicted character who is drawn to the dark side.
The main characters include Yugi, his friends like Joey and Tea. And of course, there are the antagonists who create the challenges for them.
Well, clearly Yugi and Yami are the main characters. In their baby forms, they are the focus of the fanfiction.