Bai Yichen, a miraculous doctor living in the mountains, is forced to descend from the mountains and fulfill a marriage contract with Gu Qinghan, a cold and beautiful female CEO, because his master owes a debt. From being looked down upon to using his extraordinary golden-needle techniques to resolve medical disputes and protect his beloved, he battles the Long family's schemes along the way. When he travels to the southwest in search of medicinal herbs, he follows the clues to expose and bring down a black-market operation involving substandard products. After enduring emotional trials, the two go from disliking each other to becoming inseparable through life and death, ultimately walking down the aisle together.