Shen Chaochao and Wu Yun have been in love for three years. Her boyfriend seems to be deliberately distant, but in fact he is deeply protective. He was originally a succubus, but he restrained his nature because of his deep love, just to protect her from any harm. When Shen Chaochao learned that he was an exorcist, although the two had opposing identities, they still sincerely agreed with each other. They broke through barriers and prejudices, tolerated each other, and went in both directions. They used love to resolve all crises, explaining that true love is not afraid of differences. In the end, they stayed together and reaped warm and complete happiness.