Lin Qiao of Xiahe Village faces heavy family difficulties; her mother is seriously ill, and her younger brother is very young. She accidentally fishes up an eerie snail and promises to take it to the old hydrological station at Luoyan Ridge, in exchange for the opportunity to cure her family. Through the long night, Lin Qiao embarks on a treacherous mountain road, experiencing numerous illusions and trials along the way, holding fast to her original heart and trust. Along the way, she meets A Shui, whose background is pitiful, and fights against various greedy people coveting the opportunity. Passing through numerous secret realms and uncovering the past entanglements buried by the old well, Lin Qiao guards the bottom line of kindness, resolves the crisis, protects her family and village, and welcomes the dawn where the storms subside.