The Regressor Makes Everything

Read manhwa The Regressor Makes Everything / The Regressor Can Make Them All / 회귀자가 다 만들어줌
Lee Se-hoon, the blacksmith of humanity’s last suicide squad, fought against the demons to the bitter end, but the result was mutual destruction, the destruction of the world. The moment he took his own life, overcome by that absurdity, he exclaimed, “…what is this?” He returned to his days as a trainee at the hero training institute Babel. A new opportunity. He would use anything to achieve victory. Anything!