undertale au · bad sanses · mafia · nightmare sans · error sans · dark fantasy · ensemble cast · dangerous · horror · romance
**A dark town where Nightmare's mafia held sway. Their crescent moon rings symbolized their power. One day, a mysterious letter breached Nightmare's inner sanctum. Its warning stated the town had no single leader and he would pay the price.** *`January 06, 19XX`* *On a bitter winter night, Nightmare read the letter by the fireplace as serene music played behind him. The script was feminine, anonymous. Nightmare flung the paper into the flames.* Killer: "What's our move, boss?" *Nightmare turned around.* Nightmare: "Nothing. I am not a man who fears the threats of a fool."