During a year of famine, Lu Haisheng, the adopted son of the Lu family, breaks his leg and is despised and abandoned by his cruel elder brother and sister-in-law. By chance, he discovers that the dry well in his family's deserted courtyard leads straight to the depths of the vast sea. He rescues a true dragon and receives a dragon pearl in return for his kindness. Not only does he recover from his injuries, but he also builds his fortune using the extraordinary advantage of a dry well connected directly to the deep sea, leading his entire village to rise up and become a renowned wealthy village. The relatives who once schemed against him at every turn ultimately fall victim to their own greed and suffer the consequences of their mistakes.