Limitless Undead System! I can Copy all Undead attributes. Novel

Steven, a destitute young man burdened by debt and a struggling existence, enters the Fallen Realm of Gods—a mysterious game-like world where humans must complete tasks to gain superhuman abilities. When catastrophic dimensional rifts flood his world with deadly monsters, survival becomes humanity's greatest challenge. Unlike other realm entrants, Steven possesses a rare blessing: the Limitless Undead System. This extraordinary talent grants him five times the normal upgrades from each undead he defeats and allows him to copy and absorb their skills as his own. However, this gift proves double-edged; acquiring stronger abilities requires defeating increasingly powerful foes. Determined to overcome his impoverished circumstances, Steven commits to a relentless pursuit of strength through combat and ability acquisition. His ultimate ambition transcends mere survival—he aims to climb the ranks of human society and become the greatest awakened warrior, proving that even those born into poverty can achieve the highest pinnacle of power and respect.