It tells the story of Lu Lingjun, a master who has been reclusive for thousands of years. In order to fulfill his deathbed instructions to his apprentice and former head of the Wang family, Wang Xiaotian, he forbearingly protected the Wang family for three years as his son-in-law. Living for a thousand years, in order to fulfill his promise to his dying apprentice, he protected his family for three years. During this period, he married his apprentice's granddaughter, but was treated coldly by the woman's family. In the face of contempt and difficulties, the male protagonist always works hard without complaining. When the three-year period expired, he left without any nostalgia.
