By the Cheng River, the fisherwoman Liu Yueniang accidentally saves a talking golden koi, obtaining three magical golden scales capable of summoning schools of fish. Believing she could rely on the golden scales to pay off her debts and live a peaceful life, little does she know that her husband Zhou Dachuan, blinded by greed, colludes with the greedy fish market manager Liang Fuhai to plot the capture of the golden koi and forcibly strip its living scales. Little do they know, the golden scales can summon wealth, but they can also summon monstrous water debts! As nine living scales are seized and countless fish spin out of control, giant waves tower over the Cheng River. Facing her husband's betrayal, the relentless pressure of the wicked merchant, and the impending catastrophe, Liu Yueniang grips her net-shearing knife tightly, vowing to rescue the golden koi and make all greedy people pay the price!