Ao Lie, the third prince of the Dragon King, descends to the mortal realm to complete the Heavenly Court's KPI of helping a mortal village lift itself out of poverty. Due to an operational error, however, he loses all his magical powers, transforms into a palm-sized little snake, and is picked up and taken home as a pet by A Hua, a left-behind child. In Xinghua Village, he is forced to live a socially humiliating life of eating coarse grains, being chased by chickens, and helping Grandma watch the kitchen stove.