The story follows a woman who is completely deaf in her left ear and can "hear" whether medicinal herbs are genuine and how old they are with her right. After her grandfather's sudden death, she takes over Jirentang, a century-old pharmacy. Within the family, she must crack her second uncle's fake-medicine operation and uncover the truth behind her father's disappearance. Beyond it, she must fend off Japanese herbal medicine companies as they move to corner China's time-honored brands through capital-driven acquisitions, patent grabs, and data collection.
Theme: Authenticating traditional Chinese medicine, family infighting, defending time-honored brands, and the battle over intellectual property.