In order to escape the pressure of his original family, Lin Xi, a pediatrician in the city, reached an agreement to marry Zhou Zheng, a retired soldier who urgently needed to give his niece a home. The two returned to the impoverished mountain village. Starting from being polite roommates, they jointly faced the difficulties of rural development, raised their lovely niece, and gradually built the backward ancient village into a rich and beautiful Internet celebrity tourist destination. In the day-to-day struggle and companionship, they healed each other's old wounds, broke down their guard, and turned a contract into the warmest bond in their lives.