C2325 Needle-to-wheat Awn
There was once a poem that described the existence of an Immortal Slaying Flying Daggers in the "God's Upanishads": First, cultivate true essence before operating the skill. Here, the mysteries matched the gender; only a tiny bit of the innate technique could be used to slay demons!
According to the modern language, the Immortal Slaying Flying Daggers were an inborn treasure