Necromancer: Becoming a God Starting with Skeleton Clone

The male protagonist awakens with a seemingly useless profession, “Undead Mage,” but during his awakening, he obtains a skeleton clone from the undead world. Using the skeleton clone, he kills monsters and levels up in the undead world, with the power feeding back to himself and making him continuously stronger. Not only does this satisfy the exciting sense of progression in a growth-focused story, but he also takes advantage of the information gap to constantly create opportunities to hide his true strength and surprise others. Eventually, starting with nothing but a skeleton, he rises all the way to godhood.