Looking over Lingxi State, a Nascent Soul Stage Demon Fiend can be considered a pinnacle existence.
To slay such a Nascent Soul Stage Demon Fiend is no easy feat.
Hence, refining the Thousand-Star Demon-Slaying Sword, the first step alone stumps many.
To enhance the power of the Thousand-Star Demon-Slaying Sword, the simplest and quickest method is to continually slay hundreds of demon fiends and evil cultivators, thereby sacrificially refining the Sword Soul.
The more demon fiends slain by the sword bearer, the stronger the power of the Thousand-Star Demon-Slaying Sword becomes, making it a bane of demon fiends, capable of subduing thousands of demons and repelling ten thousand evils.
It is for this reason that once the Thousand-Star Demon-Slaying Sword appears, it inevitably becomes a common enemy in the eyes of demon fiends, hated by demons from all corners of the world, seen as a thorn in the side.
Slaying demon fiends to refine the Sword Soul is indeed not a simple task.
