Wang Xiaochun, who was framed by his fiancée Ma Chunhua and imprisoned for five years, was blamed for teaching "Heavenly Medicine" to an old man in prison. After he was released from prison, he carried the blood feud of his parents' death and started by relying on his ancestral fish pond. He used medical skills to cure fish diseases and relieve human diseases, and unexpectedly gained the favor and following of sisters Yang Liuyi and Yang Liuting. The three of them worked together to get rich by raising fish, cultivating rare golden grass carp, and resolving crises such as neighbor schemes and creditor persecution along the way. In the end, in the contest with Ma Chunhua and her forces, they successfully avenged themselves, not only paid off their debts, but also became a big boss, gaining career and love.
