On the outskirts of the Empire of Yiyue, Sainis Continent, Year 1247 of the Covenant
A deadly disease known as the "Black Tide" broke out at the Chalk Mine. No one knew what had happened or what the miners had encountered. All they knew was that the mine had been silent for a long time. By the time people realized what was happening, all they could see was an endless black tide, piled high with the dead and monsters.
Time passed. Year 1259 of the Covenant.
The empire's defensive lines continued to shrink. The Kabul Mountains, once hailed as an impregnable natural barrier against the plague, were declared lost. A tide of the undead swept through the cities of the northern frontier, and that is where the story begins.
