As the Weakest Headless Skeleton, I Forged an Undead Army.

Others transmigrate to cultivate immortality and attain sainthood; even the worst off can rise from adversity and defy destiny. Only Gu Erdan ended up as a damaged, headless skeleton soldier at the bottom of the undead realm. Trapped in a sea of bones, with a decaying fleshland to the left and a ghostly forest to the right, he was surrounded by endless undead creatures. Survival seemed nearly impossible. He luckily awakened the Skeleton Lord System. What was supposed to be a cheat code turned out to be a ridiculously flawed gimmick. The system was brutally straightforward: spend energy to strengthen the undead, with no upper limit on ranks—one could even ascend to become a Creator God. Yet it came with a fatal flaw: the host could never be upgraded, and his undead subordinates held no permanent loyalty. Every powerful subordinate he raised was another potential traitor waiting to betray him. He started weak and defenseless, equipped with nothing but yellowed fragile bones, not even capable of protecting himself. To survive this undead purgatory, Gu Erdan had to tread carefully and train his subordinates with extreme caution. From a tattered lowly skeleton to a mighty lord commanding billions of undead, witness the weakest headless skeleton evade betrayal and unleash an apocalypse upon this alien world!