Zhan Xiaoye, the grandson of the port city ship king Zhan's family, is seriously ill, so Snakehead sends Xiao Duoyu to the Zhan's family to celebrate. Xiaoduoyu looks ordinary, but it can swallow evil spirits and bring good luck. It not only wakes up Zhan Xiaoye, but also helps Feng Chunyu conceive twins and cures old lady Zhan's illness. In order to seize the family property, Zhan Yuxuan and others used magic to frame the Zhan family many times, but they were all resolved by Xiao Duoyu. In the end, Xiao Duoyu transformed into a white tiger to purify the evil spirits of the port city, protect the Zhan family and the people of the port city, and became the "little god of wealth" in the eyes of everyone.
