He DIED and Reborn as SKELETON, Now Every KILL Makes His UNDEAD ARMY EVOLVE!

After waking up as a ridiculously weak skeleton in a fantasy world, a transmigrator discovers his Undead Sovereign power lets him resurrect corpses, evolve his minions through breakthroughs, and steal part of their growing strength for himself. Starting with one hilariously incompetent skeleton servant, he soon discovers even monster bones can fuel his army—turning the forest into the perfect factory for an undead empire.