This is a family composed of ancient books. It was almost destroyed due to human greed. Sun Yanqi, a military scholar, and his younger brother, Sun Yanqi, a medical scholar, got separated while evading pursuit. He thought his brother was dead. He once lost hope of living and never wanted to be rescued by Mortis. While searching for ancient books and accompanying Mortis to find his brother, he discovered that his brother was not dead? ! The adventure in the spiritual cave, the trip to England, the dangers of searching for medicine in the fairy mountain... Can they successfully overcome it?