Qin Guolin of Han Dynasty, an honest farmer, worked hard to raise his three sons. However, in his later years, he had no one to support him and his cowshed froze to death. Once reborn, he returned to the age of forty, which coincided with the plight of his eldest son's marriage, slander by his daughter-in-law, and the family's debts. Qin Guolin, who had lost his cowardice in his previous life, decisively separated the family and established rules, and taught his young son strictly. Taking advantage of the opportunity of the times, he earned his first pot of gold from fishing and selling fish, and took the lead in promoting fish farming in the village, developing sales channels, and operating shops. Working hard all the way, they reversed the fate of poverty, corrected the character of the three children, and allowed the children to grow into their own talents. At the same time, they gained sincere friendship and lived a new, transparent and complete life.