To Kill A Killer

Nightmare's gang always knew that their job was risky, but they never expected to actually die.
Then Killer was killed.
Nightmare found a replacement quickly enough, but this new Killer isn't the same as the old one, and the gang are having a hard time adjusting.

Inspired by a comic by darkxsoulzyxcaliberx. Something New belongs to rahafwabas. Dusttale belongs to Ask-Dusttale. Dreamtale belongs to Joku. Horrortale belongs to Sour-Apple-Studios. Xtale and Underverse belong to Jakei. Underswap belongs to p0pcornPr1nce/the Undertale AU community. Ink!Sans belongs to Comyet. Any other characters and AUs mentioned belong to their original creators. All art by me. A huge thank you to my partner for beta-reading.