Upon completing his education at the University of Traditional Chinese Medicine, Sun Jiayou returned to his hometown to take charge of his family's conventional Chinese medicine store. Although met with resistance from the community regarding medicine as a healing remedy, they remained steadfast in preserving their individualistic spiritual beliefs. Committed to fulfilling his grandfather's lifelong aspirations, Sun Jiayou aspired to revolutionize the accessibility of Chinese medicine through groundbreaking methods. Nevertheless, the spirit guide perceived this as a significant hazard, leading to confrontations with the spirit messenger and an eventual revelation of a profound enigma.