It is a fantasy medical drama that tells the growth story of a vampire surgeon in his mid-20s who struggles for justice and dignity of life by treating terminally ill patients in one of the best cancer hospitals in Korea. As the story progresses, we all can feel that the true value of life does not lie in just a simple extension of life but in how we live. What choices do we have to make when we stand in the position of the strong? This society is like a vampire sucking up people's blood. A reality scarier than we imagine unfolds now.