Li Yinwen is hit by a dump truck and sent hurtling into an apocalyptic city overrun by zombies. At death's door, he binds himself to a mysterious [Fragment of Will] and awakens a shadow ability that can "erase existence." In this world torn apart by class divisions, the poor struggle like maggots in the slums, while the inner-city elite keep human corpses for gladiatorial combat. He fights his way through a river of blood, only to become a wanted criminal.
When the insect race tears open the sky, humanity builds three layers of firmament in the "Rock Fortress City": Dustfolk are used as fuel, battle blades are cogs of flesh and blood, and the swordbearers of the heavens watch coldly from above. Li Yinwen lies low among the downtrodden with Ye Jinle, a disfigured girl, and infiltrates an esper academy under a C-rank disguise, while the shadows in his palm grow restless. Meanwhile, rain of insect crystals silently seeps into all things. And the ancient horror staring at them from the abyss lies within the corpse of a colossal star-dwelling insect...
