Chu Beichen from Medicine King Valley descends the mountain to search for his master, possessing peerless medical and martial prowess yet utterly ignorant of worldly ways. Saving Shen Muxue, who is afflicted with the Seven-Day Bone-Rot Poison, he unexpectedly uncovers a twenty-year-sealed background—he is actually the missing legitimate grandson of the Shen family! Poison techniques leaking out, elite family infighting, and a third-party dark organization closing in step by step. Shen Muxue single-handedly bears the trials of corporate business wars, while Su Wan is deeply devoted, caught in a best friend Shura field. Sect clouds of suspicion are heavy, the martial uncle's true and false identities are hard to discern, and even the master deemed deceased hides a heaven-shaking secret. With silver needles fixing life and death, and medicine and martial arts protecting the dearest ones, Chu Beichen smashes through the maze, practicing medicine across rivers and mountains with his beloved!