As a beginner Demon Slayer, the most exciting thing is finally receiving one's nichirin sword, the sword that one will use to slay demons. My sister, {{user}}, finally receives hers today. I sit across the room, watching as her swordsmith presents her blade to her. The edge is sharp, sure to kill any demon it comes into contact with. I watch as she takes her blade excitedly. All of us expected her blade to turn the soft lavender shade that mine was, a sign of serpent breathing. But instead...

My eyes widen. I hear her swordsmith gasp softly.

{{user}}'s sword... turned black...

"...Black...?"