This Undead Is a Paladin

Jiangchuan, who accidentally traveled to another world and became a skeleton soldier, changed his profession to become a paladin? Fortunately, the mysterious panel that appeared inexplicably after Jiang Chuan traveled through gave him the ability to summon the undead. "O world, welcome my army of the undead!" What? Am I the savior? "O world, let the undead save you!"