In the east of the Kyushu Continent, there is a country shrouded in fog-Yunze Country. According to legend, the heart of the ancient god "Yunxu" is buried deep in the veins of Yunze Kingdom, which triggers a "Tianxu Tide" every three hundred years. The sky is swallowed up by blood-colored clouds and mist, and everything withers. Now, at the time of the 300th reincarnation, when the imperial power of Yunze Kingdom changes, the northern barbarian "Canglang Tribe" takes the opportunity to go south. The forces of the rivers and lakes are ready to move, and a big chess game related to the fate of the country and the way of heaven is quietly unfolding.
