Seven years ago, Elena, a vampire female painter, in order to protect her lover Dominic who was disguised as an ordinary werewolf, she reluctantly pretended to have cheated on her and broke up with him using the most vicious words before disappearing. She contracted vampire degenerative disease and was on the verge of death, giving birth to twins alone. Seven years later, Dominic will be crowned Wolf King, and the twins break into the Wolf Castle to recognize their father in order to save their sick mother. Dominic is shocked but denies it because blood induction does not exist. In addition, there are many layers of estrangement between Camilla and he and Elena. However, he hates and humiliates her in front of her, but protects her with his life behind the scenes. After going through life and death sadomasochism, the truth finally emerged with the help of the children. The Wolf King gave up half his life in exchange for his lover, and the interracial family was finally happy.
