A cataclysm spanning a thousand eras overturns heaven and earth. Smoke rises across the realms, and ancient treasures lie buried in dust. A beggar from the mire, without a spiritual root and with a life as precarious as a duckweed, nonetheless harbors lofty ambitions. He takes up his sword to break through thorns, yet his obsession leads him into peril. The sword’s song cannot sever worldly ties; his furrowed brow cannot unravel the mystery. He laughs off common insults and remains free-spirited and true to himself. He proves the Dao and becomes a demon, following only the desires of his heart. With his heart-sword undying, he defies fate and cleaves open the heavens.