Yaqing, a girl with royal blood, transformed from a human into the half-vampire of her dreams. After making a blood contract with the vampire servant Louis, Yaqing slowly became cold and unhuman, just like a real vampire. The strange best friend Ruo Ying, the two brothers Han Qiuyan and Han Qiu Ning who suddenly appeared, the mysterious vampire servant... How should Yaqing face the concealment and betrayal from friends and relatives, and can she continue this cherry-blood relationship...