A potential main character could be an older, more experienced vampire who acts as a mentor or a threat to the black vampire. And then there could be a group of hunters. They would add an element of conflict as they try to hunt down the vampire while the vampire is trying to pursue love. This would create a complex web of relationships and power struggles.
The black vampire, obviously. They would be at the center of the story, with their own backstory, motives, and desires. There might also be a human love interest. This person could be someone who is initially unaware of the vampire's true nature and gets drawn into their world.
One possibility is a young and beautiful vampire girl and a brave human boy. The girl has been living in the shadows for years, and the boy is new to the town where the vampire resides. Their encounter changes both of their lives.
Well, I think the themes would be about the power dynamics. Vampires are generally powerful creatures, and in a love story, how power is balanced or unbalanced within the relationship is important. And of course, there's the theme of the 'otherness' that comes with being a vampire, especially a black vampire. It could explore how society views and treats this different being, and how love can either bridge or widen that gap between the vampire and the rest of the world.
There could be a human girl who is not part of the main story but has some sort of special ability that Hanabusa is drawn to. Maybe she can see the future or has a unique form of psychic power. Their relationship would be complex as he is a vampire and she is a human, and they would have to deal with the differences in their natures.
Naruto and Shinso are the primary ones. But we could also have an old and wise vampire elder as a main character. This elder could have knowledge about a prophecy that involves Naruto and Shinso, and his actions and decisions would drive a lot of the plot as he tries to either fulfill or prevent the prophecy.
The main characters could be a shy human girl who is an outcast in high school and a mysterious vampire boy. The girl might be the type who is always reading books in the corner of the library and the boy could be the new student who seems to have a secret.
Obviously, the black wolf itself could be a main character. It could have a distinct personality, like being brave yet a bit solitary.
One possibility could be Sebastian Michaelis, the demon butler, as the snake in a transformed state falling in love with Ciel Phantomhive. It would be a very strange and complex relationship as Sebastian's loyalty is supposed to be to Ciel in a more master - servant way, but if he were a snake in love, it would completely change the dynamic.
Well, of course, there's the little vampire himself. He could have a best friend who is a human, a brave kid who is not afraid of the vampire's nature. There might also be an old vampire mentor who teaches the little one about vampire traditions and how to control his thirst.
There could be a young single mother. She might be struggling to make ends meet during Christmas but then meets a kind - hearted man who changes her life. Another character could be an old man who has lost his faith in love but is brought back to life by a chance encounter with a woman during the Christmas season.
Well, typically there's the vampire character. This character has all the traits of a vampire like the need for blood, super strength, and the ability to move quickly. Then there's often the love interest. It could be another vampire, or a human. If it's a human, they usually have their own unique personality, like being brave or curious, which draws the vampire to them.