The story of a woman who has gone through several reincarnations over the course of 600 years and remembers all of her past lives and a man who has lived for over 600 years as a mythical creature that feeds off human blood and is cursed with immortality.

A creature action thriller series about the desperate survival of the survivors among the mutant humans who drank a mysterious black smoke from the sinkhole and soon turned into monsters and quickly became a pandemonium.