Five hundred years ago, a great calamity struck. As it descended, the heavens and earth changed color, and all living things wept blood.
At this perilous moment, twelve immortals joined forces with the five great immortal sects to form a protective array. They offered up their lifelong cultivation, blood, essence, and souls as sacrifices, finally securing a glimmer of hope for the world.
From then on, the twelve immortals fell, and only three of the five great immortal sects remained...
