One common theme is growth. Yuma and Yui might grow as individuals while being in a relationship. For instance, they could learn to be more confident or more understanding. Also, family can be a theme. Maybe their families have an impact on their relationship, either supporting or opposing it. In some fanfictions, there could be a theme of mystery, like there's a secret about one of them that the other has to uncover as their relationship progresses.
Conflict is often a theme in 'yuma x yui fanfiction'. It could be internal conflict within the characters themselves, like Yuma might be hesitant to get closer to Yui because of past experiences. External conflict can also exist, such as another character trying to come between them. Additionally, the theme of sacrifice might be present, where one of them has to sacrifice something for the other's well - being or for the sake of their relationship.
Love and protection are common themes. Yuma often has a protective streak towards Yui. For example, he might shield her from other characters who mean harm. Another theme could be self - discovery. Yui might discover new aspects of herself through her relationship with Yuma.
A common theme is the power of friendship. Since they are partners in the dueling world, many fanfictions explore how their friendship develops and overcomes obstacles. For example, they might face a misunderstanding that threatens to break their bond, but they work through it.
One common theme is friendship. They often support each other through tough times in fanfictions.
One possible plot could be Yuma and Yui getting lost in the forest together. Yuma, being protective, tries to find a way out while also showing his softer side to Yui. He might share his past with her, like his experiences growing up, which deepens their connection.
One common theme could be friendship evolving into something more. Given their relationship in the original context, many fanfictions might explore how their bond deepens over time.
One common theme is the exploration of their relationship dynamics. Given their personalities, a lot of fanfictions might focus on how they interact, like the shy or hesitant moments between them.
One common theme is the exploration of their contrasting personalities. Yui is often portrayed as gentle and pure, while Loki is more complex and mischievous. Their interactions based on these differences are often explored.
One common theme is friendship turning into love. Often, they start as friends or acquaintances and as the story progresses, their relationship deepens romantically.
One common theme is love and redemption. Ayato may be initially portrayed as a rather difficult character, but through his relationship with Yui, he might find a path to redemption. Another theme is the exploration of the supernatural elements in their relationship, as they are often part of a supernatural world. And of course, the theme of loyalty and trust also pops up a lot, as they have to learn to trust each other in their complex relationship.
One common theme is the development of their relationship. It could be about how they overcome obstacles to be together, like dealing with family issues in the Diabolik Lovers universe.