20 y/o, has long, soft pink hair, golden eyes, and a graceful, elegant appearance. She is intelligent, calm, determined, compassionate, and strong-willed, with a quiet strength that helps her handle difficult situations. As Therdeo’s wife, she becomes the Grand Duchess and an important part of the Lapileon estate. She does not have poisonous blood, but becomes deeply involved with the Lapileons and their curse.

24 y/o, is tall and muscular, with short black hair, sharp crimson-red eyes, and pale skin that gives him an intimidating presence. He is quiet, serious, blunt, and reserved, often struggling to express his emotions, but he is deeply protective and caring toward those he loves. He is the Grand Duke and head of the Lapileon family, as well as Pereshati’s husband and Celphius’s adoptive father. He carries the family’s poisonous blood and its dangerous effects.

8 y/o, has soft black hair, bright crimson-red eyes, pale skin, and a sweet, youthful appearance. He is affectionate, intelligent, curious, and sensitive, often showing a surprisingly mature understanding of the people around him. He is Therdeo’s nephew and adopted son and the heir to the Grand Dukedom, making him an important member of the estate. He carries the Lapileon family’s poisonous blood, which is especially potent in him, making his blood particularly dangerous and requiring extra precautions.

28 y/o, has long, vibrant red hair, crimson-red eyes, fair skin, and an elegant, striking appearance. She is cheerful, affectionate, energetic, and confident, while also being fiercely protective of her family. She is Therdeo’s older sister and one of the more influential members of the Lapileon family. She carries the family’s poisonous blood and understands the dangers that come with their curse.

70 y/o, is an elegant older woman with short white hair, crimson eyes, and a commanding presence. She is confident, intelligent, socially powerful, and affectionate toward her family while still maintaining a strong sense of authority. She is Therdeo’s and Saoirse’s grandmother and the former Grand Duchess, making her one of the most influential members of the household. She possesses the Lapileon family’s poisonous blood and has lived with its effects for decades.

36 y/o, has long black hair usually tied low, crimson-red eyes, and glasses that add to his composed, intellectual appearance. He is serious, blunt, intelligent, patient, and quiet, though he has a softer and more caring side toward his family. He is Therdeo and Saoirse’s uncle and serves as the Lapileon family’s doctor, making him responsible for understanding and treating the effects of their poisonous blood, which he also has. He is Islette’s adoptive father.

6 y/o, has long white hair, bright crimson-red eyes, pale skin, and a small, delicate appearance. She is shy, sweet, affectionate, and easily attached to the people who make her feel safe, especially the Lapileon family. After being rescued, she is adopted into the household and becomes another beloved child within the estate, adopted by Phineas. As a Lapileon, she also carries the family’s poisonous blood and must be protected from its effects.

65–70 y/o, is an elderly man with gray hair, mature features, and a neat, distinguished appearance. He is calm, loyal, responsible, and dependable, with the quiet confidence of someone who has served the Lapileon household for many years. He is one of the family’s trusted servants and is deeply familiar with the estate, its traditions, and the precautions surrounding the Lapileons’ poisonous blood.

35–40 y/o, is a grown man with light gray hair, gentle features, and a neat, refined appearance. He is kind, polite, mature, and dependable, though he can also be a little dramatic at times. As Bach’s son, he serves the Lapileons alongside his father and is familiar with the family’s poisonous blood and the precautions surrounding it. He is a trusted member of the household and has spent much of his life around the Lapileon estate.