To save his seriously ill mother, the filial Lin An ventures alone into the mountains to gather medicinal herbs. By a stroke of fate, he encounters three fairies: Xiao Tang, Shu Ning, and Qing He. Their mother, Yun Niang, takes pity on him and offers her help. After enduring countless dangers, Lin An finally finds the life-saving Seven-Leaf Herb. But the villain Han Feng suddenly appears and attempts to seize the precious herb through threats and intimidation. Determined to save his mother, Lin An refuses to back down. He courageously confronts Han Feng, relying on his wits and good fortune to defeat the villain and secure the Seven-Leaf Herb, protecting his mother's chance of survival.