In a cruel and bizarre world where humanity has long since fallen, a severely mentally ill patient seeks longevity, establishes a sect, and completely transforms the abyssal ecosystem. This is a story of a man's arrival and his pursuit of immortality in a world of strange occurrences. Alternative titles include: In a Bizarre World, Forcibly Cultivating Immortality; The Devil (Protagonist) Descends into the Abyss; Nightmare of All Races. Protagonist's Alignment: From the perspective of humans: Chaotic Neutral and Chaotic Good; From the perspective of other races: Chaotic Evil. Keywords: Interracial Struggle, Rise of Humanity, Savior, Invincible.