Moon Byul-yi has been dead for centuries. Yet, she walks around the Earth. Her biggest love chose the human life with the help of an angel and perished  two hundred years before.

The vampire became a monster with the help of a demon just to be beside the one she loved in vain. However, she doesn't hate anyone as much as Jung Wheein, the angel who took away her happiness.

Other important characters:

Hwasa, the demon who helped Moon Byul-yi

Kim Yongsun: a very curious and smart reporter who wants to interview the mysterious business woman( Moon Byul-yi) that is controlling a big portion of the money in the world.

Solar: An ancient and powerful vampire who gave up immortality after taking many lives.