That day, the sky was swallowed up by endless gray fog, the sun turned into blurry spots, and the earth turned into charred ash. Plants withered, rivers dried up, and 90% of human civilization collapsed in three days.
Three hundred years later, human beings are huddled in fortress cities maintained by ember crystals, struggling to survive. Lurking in the gray mist are bloodthirsty gray beasts, twisted shadow spirits, and those of their kind who have fallen in despair.
In order to survive, human beings have opened up three paths of cultivation: the Ember Fire Path that burns embers to strengthen the body, the Soul Contract Path that signs a contract with the shadow spirit to gain strength, and the Guixu Path that has long been forgotten by the world and is regarded as a heresy.
Lin Mo, an orphan struggling at the bottom of the fortress city. His parents died in the gray tide ten years ago, leaving only a black jade pendant engraved with strange patterns. When he went deep into the gray fog for a piece of low-quality ember crystal and was forced into a desperate situation by the gray beast, the jade pendant finally awakened, and the ancient inheritance of the Guixu Dao awakened in his body.
From then on, he will walk on the ashes, pass through the gray fog, uncover the truth about the gray calamity that came three hundred years ago, and find the way back to human civilization.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.