Shan, a mermaid, is sent to assassinate Xuan, a developer who threatens the ecosystem of her race, but ends up falling in love with him instead.Shan, a mermaid, is sent to assassinate Xuan, a developer who threatens the ecosystem of her race, but ends up falling in love with him instead.Shan, a mermaid, is sent to assassinate Xuan, a developer who threatens the ecosystem of her race, but ends up falling in love with him instead.