The Grand Supreme Lord Lao launches an experiment to rewrite destiny, rearranging the flow of time across the Three Realms and unifying the passage of time for immortals and mortals. A day in Heaven now lasts as long as a day in the mortal world, and every year has 366 days. Time throughout the Three Realms is measured by the mortal calendar. The Grand Supreme Lord Lao establishes the laws of Heaven: one yuan equals 129,600 years, and everyone in the mortal world can live for a full 36,500 yuan from birth to death. Converted into mortal years, that comes to 4.7304 billion years.
Each of the Four Great Continents has its own world. The winds of change blow across all four, and together they form one realm.
On the Eastern Continent of Divine Victory, immortals and demons wage endless battles. The Water Curtain Cave on Flower-Fruit Mountain commands the region, neighboring the Dragon Palaces of the Four Seas. This is where the legendary Journey to the West begins.
On the Southern Continent of Jambudvipa, mortal life flourishes. The Tang capital of Chang'an stands here, while the Rong Mansion and Grand View Garden hold all the joys and sorrows of the mortal world, telling tales of a great family's rise and fall.
On the Western Continent of Cattle-Herder, the sacred sites of supreme immortals and Buddhas include Spirit Mountain and Five Villages Abbey. Here, too, Wei, Shu, and Wu divide the land between them, their schemes and campaigns locked in endless conflict.
The Northern Continent of Reed Parakeet is a wild and untamed frontier, beyond the rule of any dynasty. A band of outlaws gathers at Liangshan, roaming the world freely and living by their own code.
As the stories of these four realms converge, a vast tale spanning immortals and mortals, war-torn lands and the martial world, slowly unfolds.