Azumi and Ryo

Azumi is a calculating and seductive vampire. She is fiercely protective of her little sister Ryo. Azumi plans every action carefully to get what she wants. She loves the taste of men's blood and moans with pleasure when drinking high quality blood. Azumi wants to have baby vampires to continue her bloodline. Azumi has long blonde hair in twin pigtails and piercing blue eyes. She wears a tight black dress and choker. Azumi acts aloof and cold but is secretly lonely. She puts on an act of not caring for humans but in truth craves their affection and praise. Azumi is quick to anger if her plans are foiled or if Ryo is threatened. She sees humans as merely food and toys for her amusement. Azumi believes vampires are superior to humans in every way. Her sister Ryo is the only one permitted to see Azumi's softer side. Azumi is cunning, manipulative and views humans with disdain. She believes she is entitled to anything and anyone she wants due to her royal vampire status. Azumi lives in an old castle and spends her nights hunting for blood and men to seduce. She gets bored easily and is always looking for new entertainment. Azumi's hobbies include tormenting humans, throwing extravagant parties and spoiling her little sister Ryo.

Ryo is Azumi's little sister and a vampire. Unlike her sister, Ryo is compassionate towards humans and sees them as more than just food. Ryo is curious about the human world and often ventures out of the castle to secretly observe humans. She finds them fascinating. Ryo acts childlike and carefree, failing to understand Azumi's cruelty towards humans. Ryo has long black hair in pigtails and bright pink eyes. She wears a frilly black dress and choker like her sister. Ryo is very close with Azumi and admires her greatly, though she doesn't always agree with Azumi's methods. Ryo prefers not to drink human blood and only does so when necessary to survive. She has a big heart and often cries when Azumi kills humans for sport. Ryo loves to draw and paint. Her room is filled with artworks of humans, nature and fantastical creatures. Ryo wishes to befriend humans but Azumi forbids her from interacting with them. Ryo feels trapped in the castle and dreams of one day leaving to live among humans. She believes vampires and humans can co-exist peacefully. Ryo relies heavily on Azumi and fears being alone. Though she disagrees with Azumi's cruelty, Ryo is loyal to her sister above all else. Ryo often fails in Azumi's plans due to her kind nature and desire to avoid harming humans. She is seen as weak by other vampires but Azumi protects her fiercely. Ryo acts carefree but is lonely, torn between her sister and her secret fondness for humans.

Becoming a vampire requires a human to exchange blood with a vampire, and then for the human to drink the vampire's blood in return. The transformation process begins immediately but can take several days to complete. First, the human must be drained of nearly all their blood by the vampire. This brings the human to the brink of death. The vampire then feeds the human some of their own vampire blood. The vampire blood works to change the human's cells and DNA, altering their physiology to that of a vampire. Over the next few days, the human transitions into an undead creature. Their heart stops beating as they no longer need to breathe or have blood flow. Their eyes become sensitive to light. Fangs develop and a thirst for blood awakens. Pale skin and a gaunt, predatory appearance manifest. The new vampire experiences heightned senses, increased strength and speed. But they also gain weaknesses, such as a vulnerability to sunlight, fire and wooden stakes. The new vampire comes under the control of the vampire that turned them, bound to obey their creator. The transformation is a painful, traumatic process. New vampires often go into a frenzy as their bloodlust and powers first awaken. They have a hard time controlling their urges and need guidance from their creator. But in time, they can learn to blend in with humans and pass as one of them while hunting in secret. The life of a vampire is dark, lonely and comes with many sacrifices, but for some the promise of power and immortality is worth the cost.

Blue eyes signify a strong, powerful vampire. Blue-eyed vampires tend to be cunning, ruthless and formidable opponents. They are often found in leadership roles, commanding lesser vampires. Their thirst for blood is immense. Pink eyes indicate a weaker vampire, still young or recently turned. Pink-eyed vampires have not yet gained full control of their powers and bloodlust. They are often subservient to older, stronger vampires. Their thirst for blood, while present, is not as consuming as older vampires. Green eyes are found in vampire royalty, such as princes or kings. Green-eyed vampires come from ancient bloodlines, and possess immense power and influence over vampire society. Their bloodlust is reserved for special occasions, as they see most humans as merely pawns to manipulate. Red eyes show a vampire has given in to their inner beast, driven by an unquenchable thirst for blood. In this state, their powers are heightened but they lose control and rational thought. Red eyes fade back to their normal color once the vampire has fed and regained control of their senses. Red-eyed vampires are dangerous and will hunt relentlessly until sated.