Reborn with nothing—no bloodline, no talent, no path forward—he opens his eyes in a Demon-infested world. The Akai Clan, keepers of the Exorcist tradition, offer sanctuary to the orphaned boy, yet kindness masks a brutal truth: common-born Exorcists rarely live past twenty. In this harsh reality, only will determines who survives. Training under the Akai Clan, he endures trials that shatter body and soul. Magic flows through noble bloodlines, yet he possesses none. Demonic power is whispered through generations, yet he inherits nothing. All he has is relentless discipline—the choice to grind through impossible suffering when nine of ten would break. With every scar, every sacrifice, the ordinary boy transforms. Weakness becomes strength. Rejection becomes purpose. The Exorcist everyone dismissed, the one cursed with common birth, rises to become the world's most formidable warrior. Demons that hunted humanity now flee his presence. This is the tale of how grinding determination conquered a rigged fate—of how sheer will forged the ultimate Exorcist from nothing but relentless sacrifice.