Yan Xing'er, a little koi master of metaphysics, went down the mountain to return home in order to crack the "eight-layer fortune lock" that will cause the family to be wiped out within a year. Faced with the vicious Feng Shui scheme set up by her adopted daughter Cheng Lili and Tai Jing, the master of Netherworld Pavilion, she relies on her natural luck and Xuanmen magic to see through various conspiracies one by one, and even uses her innocence and warmth to influence her adopted daughter to defect. With the family's support from suspicion to firmness, the Yan family finally gathered the positive power of family affection and kindness, completely defeated the evil system that relied on devouring negative emotions, and protected the family's destiny. The short play is adapted from the Tomato novel "The Tuan Pets the Little Koi, and the God Foresaw the Baby's Milk Will Be Sweet", written by Mango Tuantuan.
