In the late 1980s, a severe drought and famine strike Shiyuan Village. While searching for food, Zhou Ping'an is pushed off a cliff by Zhao Youtian and his son. His soul is reborn as a yellow dog, and he protects his childhood sweetheart, Liu Xiaoman. The Zhao family falsely claims that Zhou Ping'an is dead and fabricates debts to force Liu Xiaoman to surrender her ancestral home and marry Zhao Dayong. At her most desperate moment, Zhou Ping'an awakens a tenfold-return system: hunted and gathered supplies multiply in quantity, while medicinal herbs can also improve in quality. Relying on a dog's natural abilities and the system, he secretly obtains food, water, and medicinal herbs, navigates the competing forces around him, and leads the villagers in reclaiming wasteland and building granaries to survive the famine. After evolving through the power of spiritual herbs, Zhou Ping'an regains his human form and reveals the truth to Liu Xiaoman. Together, they punish evil and promote good, finally welcoming a peaceful life.