A great fanfiction idea could be set in a post - 'Collapse' world where D discovers a hidden vampire society that has been thriving underground. This society has its own rules and hierarchy, and D has to navigate through it to stop a plot that could endanger the already fragile human - vampire balance in the world.
Well, obviously D is often a main character. He's the iconic vampire hunter with his unique blend of human and vampire traits. His half - vampire nature makes him both an outcast and a powerful force against the vampires. Another character that might be featured is Leila, a strong - willed human who sometimes teams up with D in different fanfictions.
A fanfiction might focus on Doris' relationship with the people in her village. It could show how her life was before D's arrival, her daily routines, and how she was seen by the villagers. For example, perhaps she was a bit of an outcast because of her family's past, and this could add more depth to her character.
The theme of mystery is quite prevalent in 'vampire hunter d fanfiction'. D's past, the origins of the vampires, and the strange powers and artifacts that are often involved in the stories are all shrouded in mystery. Another theme is survival. D has to constantly survive in a world full of dangerous vampires, and the humans he tries to protect also have to fight for their survival. And the theme of the supernatural is of course a given, with all the vampire lore and D's own unique abilities.
Yes, there are some really interesting 'Vampire Hunter D Castlevania' fanfictions out there. You can often find them on fanfiction websites. Some might focus on crossovers between the two universes, like having D interact with the characters from Castlevania. Others might explore new storylines inspired by the unique elements of both.
Friendship and loneliness are themes as well. D is often a solitary figure in his hunting, but sometimes he forms unexpected friendships or alliances. Some fanfictions explore how these relationships affect D and his mission. There is also the theme of the unknown and the supernatural world that D is constantly exploring, which adds an element of mystery to the stories.