One idea could be to have the previous victors be forced to compete again. This would add a whole new level of drama as they already thought they were safe. They could also form alliances based on their past experiences in the games.
Change their backstories. Maybe a character who was from a wealthy district in the original now has fallen on hard times and is from a poorer district in the rerun. This would change their motivation and how they interact with others. They might be more desperate or more empathetic depending on the change.
Ayato in Diabolik Lovers is often portrayed as confident and somewhat possessive. In Ayato x Reader fanfictions, his character traits are usually amplified. He's shown to be highly attracted to the reader and will go to great lengths to keep them close. His vampire nature also adds an element of danger, as he may struggle with his blood - thirsty instincts while being in love with the reader.
Inner Mongolia's Siziwang Banner and Siwangzi Banner were the same place. The Siziwang Banner was a flag of the Inner Mongolia Xilin Gol League, and the Siwangzi Banner was a town under its jurisdiction. Therefore, the two were different names for the same place.
Ayato x Yui fanfiction often explores the complex relationship between the two characters. It can range from their initial encounters to the development of deeper emotional bonds. In many fanfictions, the authors might focus on how they overcome obstacles together, whether it's from the challenges within their fictional world or from their own personal differences. Some fanfictions may also delve into their individual growth as characters while being in a relationship with each other.
In the manga, Ayato survives his encounters with Kaneki. The story doesn't have Ayato being killed by Kaneki. Their interactions are part of the complex plot but not resulting in Ayato's death.
Ayato would likely become more possessive. Since Yui is carrying his child, he would see her as even more precious and something that belongs solely to him. He might be more affectionate in his own rough way, like constantly checking on her and being more touch - sensitive.
There could potentially be some very niche or out - of - the - ordinary fanfiction that involves such a plot, but it's not something that would be easy to find in mainstream fanfiction repositories. It might exist in some more specialized or less - regulated fan - created spaces, but it's also possible it doesn't exist at all.
In a fanfiction, Yui and Ayato could go on an adventure together. They might find themselves in a mysterious part of the mansion that no one has explored before. As they face various challenges there, they have to rely on each other. Ayato, who is usually so self - assured, might start to see Yui in a new light as her bravery and determination shine through.