Modern girl Su Xiaohe travels to ancient times and becomes a peasant girl. She saves Erniu, a mute man accused by villagers of being a snake demon, who turns out to be the amnesiac Snake Lord Xuanchen. She stands up for him and splits from her harsh family, making a living by smart farming. As Erniu regains his powers and memories, he dotes on and protects her. The couple punishes cruel relatives, ends the drought with his magic and earns money by making bread. They survive hardship, stay deeply in love and live a warm rural life.
