When Xuan's real estate project threatens the home of mermaids, Shan is sent to stop him. When they fall in love, he is encouraged to cancel the project. However, he must save them from bigger danger.

Lin Yun

Mermaid Shan

Deng Chao

Liu Xuan

Zhang Yuqi

Ruolan

Show Lo

Brother Eight

Tsui Hark

Uncle Rich

Wen Zhang

Constable Mo

Kris Wu

Long Jianfei

Lee Sheung-Ching

Constable Shi

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