Yun Seo is a half-human and half-vampire of 118 years (born from a human mother and a vampire father).
She works as a sommelier because she has naturally a good sense of taste and smell. However, she wants to escape from her father and become a human being someday because she hates him for using her mother's blood for his business. Her mother used to have the blood of great men suitable for the vampire wine.
One day, MeoRu who has the most irresistible sweet blood appeared in front of her.
