Wang Shoushan, a retired forest ranger, loses all three of his sons when they die while entering the mountains to rescue someone. They leave behind three young widowed daughters-in-law and Zhou Lan's six-year-old daughter. On the day of the funeral, his younger brother Wang Fugui joins forces with a creditor, Ma Dabiao, to demand repayment of the debt. Several relatives by marriage also pressure the widows to remarry. Everyone believes that Wang Shoushan cannot possibly support such a large family. But Wang Shoushan makes a solemn promise in front of everyone: As long as I draw breath, this family will never fall apart. At this critical moment, he awakens the Mountain God Encyclopedia, a mysterious ability that allows him to see information about mountain treasures, medicinal herbs, fierce beasts, and hidden dangers. With his guidance, Zhou Lan, Tian Xiu, and Lin Qiao grow into three capable managers who can independently handle the accounts, goods, and sales channels. Together, the family protects the mountains and builds a prosperous life.