Won, a 14-year-old orphan from the slums, survives a deadly Veyne raid—a monster-infested rift—only to be sentenced to execution for being the lone survivor. Accused of betraying his comrades and causing the revered General's coma, he narrowly escapes death when the General awakens and demands his presence.
Instead of freedom, Won is thrust into a perilous master-ranked Veyne as a test of his worth. Armed with newfound abilities—heightened senses (Sensari), shapeshifting (Disguise), and mind manipulation (Cognidominance)—he battles illusions, cannibals, and monstrous entities, uncovering corruption and dark secrets along the way.
After slaying the Veyne’s boss, he encounters the dying God of Emptiness, who names him as his vessel. Won gains divine power and an unprecedented rank—Gravemarch, the highest Ashen rank in history. Concealing his true strength, he enrolls in Meteor Ashen Technical, an elite academy for monster-slaying Ashens, where he faces ridicule as the only "Flintshade" in his class.
As Won navigates academy life, he uncovers deeper conspiracies: a hidden war among gods, the truth behind the Veynes, and his own destiny as the world’s first Gravemarch. With enemies lurking in the shadows—monsters, corrupt officials, and divine entities—Won must master his powers before the world’s greatest threat emerges.