A big devil who has been struggling in the main god's space for ten years gave up a chance to live again in a parallel world.
Originally I just wanted to be a salted fish and take good care of myself in old age, but I didn't know that this weird and bizarre world was actually full of dangers, and I had no choice but to gradually reveal its ferocious minions...
Only by being darker than all darkness, and only by being more ferocious than all ferocity, can one be fearless of everything!
(PS: Supernatural flow, dark direction.)