Genocide...

Our protagonist/Main Character, John, died by getting shot in the head. He is reincarnated into an Undertale Multiverse as a human. He works his way up to travel to AUS and later to AM'S (Alternate Multiverses). Will he befriend the monsters he encounter? Or will he kill everyone and everything in his path?

(Note: The story might be short because I'm impatient and I hate slow paced stories.)