Well, in Diabolik Lovers, Shu is often a favorite in fanfiction. His laid - back yet deep - down troubled nature attracts a lot of writers. In Vampire Knight, Yuki is very popular. Her journey of self - discovery and her relationships with the other characters are often explored in fanfiction. Additionally, in Diabolik Lovers, Laito is a character that shows up a great deal in fanfiction. His flirty and somewhat devious personality gives a lot of room for interesting storylines.
In Diabolik Lovers, Ayato is often a popular character in fanfiction. His brash and confident personality makes him an interesting subject. Subaru is also quite popular, with his brooding and somewhat tortured nature. For Vampire Knight, Zero is a very common character in fanfiction. His struggle between his human and vampire sides is a rich area for exploration. Kaname is also popular, given his complex character and his role in the Vampire Knight story.
Ayato is quite popular. His confident and sometimes brash personality gives a lot of room for interesting character development in fanfiction. Writers can explore his relationship with his brothers and his growing feelings for the main character in different ways.
One common theme is romance. Given the nature of both series with their vampire characters, there are often love stories between human and vampire characters. For example, in Vampire Knight, there are fanfictions that explore deeper relationships between Yuki and the vampire boys.
A good fanfiction idea could be to put the characters in a modern-day city setting. Imagine the Diabolik Lovers vampires trying to adapt to the bustling life of a big city like Tokyo, and then they run into the Vampire Knight characters who have their own set of rules and hierarchies. It could lead to all sorts of interesting interactions, from power struggles to unexpected alliances. You could also focus on a love triangle between a character from each series and a new original character.
Zero is often very popular. His complex character, being a vampire hunter with vampire blood himself, makes him full of contradictions and depth. Fans are intrigued by his internal struggle between his human side and the vampire instincts within him.
Another option is to check out Tumblr. Some bloggers post their own fanfictions or reblog interesting ones. You can follow relevant tags like #VampireKnightFanfiction or #DiabolikLoversFanfiction to stay updated on the latest works.
Zero is definitely one of the most popular. His complex personality, being a vampire hunter yet having the vampire curse within him, makes for great storytelling. Yuki is also popular. Her torn feelings between her human side and her connection to the vampires, especially Kaname, give a lot of room for emotional exploration. Kaname himself is a favorite. His mysterious nature and his role as a powerful vampire leader provide many angles to write from.
Obviously, Hinata herself is a very interesting character in these fanfictions. Her character from her original source material brings a certain innocence and determination that gets explored in new ways in the Vampire Knight setting. Then there are the vampire characters like Kaname Kuran. His complex personality and his relationship with Hinata can be really captivating in fanfiction. Another interesting character could be Zero Kiryu, especially when his story intersects with Hinata's, given his own struggles with his vampire side.
Well, often OCs that have a complex relationship with the main characters are popular. For instance, an OC who is a vampire that becomes a rival to one of the main vampires in Vampire Knight Pendragon for the love of a human. Also, OCs that bring a new element to the story, like an OC who has a magical artifact that can change the rules of the vampire - human world. And OCs that are morally ambiguous, such as a half - vampire half - human who sometimes sides with vampires and other times with humans depending on the situation, can be very popular in the fanfiction world.
The Mukami brothers also offer great potential. Ruki, as the leader - like figure among them, has a complex personality. His intellectual and manipulative side can be a great source of conflict and growth for the male reader in a fanfiction. Yuma, with his rough - and - tumble exterior and a softer side underneath, can add an interesting dimension to the relationship with the male reader.
There are several main characters. Yui Komori is a central figure. She is often the focus of the vampires' attention. Then there are the vampire brothers like Ayato Sakamaki, who is bold and somewhat impulsive in his actions towards Yui.