The Regressor Makes Everything

Lee Saehoon, the master blacksmith of humanity's final stand, fought demonic forces to the bitter end, only to witness the total destruction of the world. Standing among the ruins, he chose to end his own life—awakening in the past as a candidate at the prestigious Babel Academy training institution. Granted a miraculous second chance at life, Saehoon vows to alter history. Armed with his past expertise and a relentless determination, he will stop at nothing to forge a path to victory, utilizing any material and any method necessary to ensure humanity's survival this time around.