In the Sichuan Tang Clan, medicine and poison are the two sides of every coin. Tang Mujin was a prodigy of the clinic, a healer dedicated to the quiet art of the needle and the herb. But the rhythmic pulse of the Jianghu beats to a different sound the ring of a hammer on an anvil. After inheriting the memories of the legendary smith Ou Yezi, Mujin discovers a third path. This is a story of a physician who realized that to truly protect a life, he must sometimes forge the very weapons that can end one.