The weapon forged from the skeletal remains of the ancient water demon “Canglan Jun” is concealed within the Water Eye on the immortal island of Penglai. The bronze‑hued patina adorning the blade bears the marks of countless millennia of seawater erosion, while its barbs gleam with a chilling, otherworldly sharpness—reminiscent of the jagged teeth of a demonic bone. This blade can absorb the spiritual energy of water‑based spells and channel it for its own use; the intricate patterns etched into the blade shift and shimmer in response to the ebb and flow of the tides. Only cultivators whose hearts are attuned to the stillness of water can avoid being consumed by the blade’s malevolent power.