Xiumin is an Half-Blood. His mother was a mortal and his father is the king of Arcanus, the biggest planet of the galaxy. He was just a normal 20 year old boy who lived on earth until his father kidnapped him... With all the things that were happening, he was forced to become a killing machine for him. He doesn't feel any emotions, until one day, something happends and he hides in small house on earth and finds someone who at the begining means nothing to him, but in the future, will change his life.