Ye Ci, a scavenger wandering on the edge of an abandoned city, is gifted with the ability to glimpse darkness that ordinary people cannot bear. He thought his powers were nothing more than a curse, until a scream in the market one night awakened the "Black Spine Order" that had been dormant for many years - an ancient force that worshiped despair and chaos. Whenever the moon is at its strongest, the cult awakens forgotten horrors with blood, condensing the city's shadows into substance. Ye Ci was forced to step into the dark maze, colluding with the shadows in his body, and wandering between madness and reason. His motive is not to save the world, but to find the truth behind his mother's disappearance - the crack that has never healed, hiding the source of all malice. Every choice Ye Ci makes will tear the darkness deeper: Will he become a monster that devours the city, or will he let the darkness surrender to him? In this struggle that cannot be touched by light, Ye Ci must face his own abyss. Only by looking directly at fear can we control it - and the price may be the last remaining warmth of human nature.