I Slay Demons in the Land of Oblivion

One death mission. One chance to return home—or so he thought. Trapped in endless cycles of slaughter, he's forced to uncover a truth buried for millennia: the human body is a shackled treasure, and God's forbidden zones hold secrets that defy heaven itself. Each revelation draws him deeper into an ancient conspiracy where destruction has been unfolding for thousands of years. By the time he reaches the end, he realizes he's walked this blood-soaked path before. To stop the annihilation, he must do the impossible—shatter the sky itself.