Yang Zhen once saw this mermaid's silk-like hair flying in the sea breeze, and its porcelain-white face like an angel in the moonlight, immersed in the sea water, as if it could be torn into pieces by the turbulent waves. So he took the mermaid home with a sense of guilt and abused him while raising him. Who could have imagined a world in which the mermaid, who had only been huddled in the innermost part of the water tank, made a counterattack, and slapped Yang Tie against the wall with a swing of its tail, making it impossible to pick it off.