The Sweet Bite Mark of the Vampire God

Three hundred years ago, he was sealed by the woman he loved at the cost of blood! Three hundred years later, she used her own blood to break his seal and made a blood contract! He is the supreme king, and he is only gentle to one woman... He is a blood hunter, but he has werewolf blood in his body. The only woman he protects actually made a contract with a vampire. When she was dying, what choice would he make...