Pearls of the Deep

Mermaid girl Bao Rouru searches for her missing father, gets caught in a murder case, and meets royal detective Gu Xinghe. She becomes his reluctant assistant; he secretly tests her identity for a cure. As they solve bizarre crimes, their bond deepens and love grows. They uncover a conspiracy linking the cases to her father's disappearance. With friends' help, they rescue him. But just as they vow to stay together, a new crisis emerges...