"Since the beginning of the calendar, there have been a few decades in the continent of Adania, and each era has produced a splendid civilization, but the continent of Adania is also a place of god's curse. No matter what kind of civilization, every thousand years will collapse in the continental periodicity, completely disappear. All that remains is a pitiful relic, and a family of the Reignman under the aegis of the earth. After several civilisations, each reignman has a mission to save civilization. Age A-277 civilization is a multi-racial civilization. After enjoying nearly a thousand years of quiet time, the earth's surface fluctuates more frequently. The threat of civilization's annihilation and the helpless despair have brought the whole civilization into chaos. For the continuation of civilization, and breaking the curse of the Adania. Once again, the Reignman of the earth start their own adventure."