Designated Human

Synopsis of Designated Human: A legendary specter wakes up in hell on earth. The problem? A glitchy System keeps labeling him "Human". To survive an S-class zombie apocalypse, he calls the government to surrender, only to be made mayor of the last city. But when he tries to rebuild civilization by turning his undead men into construction workers and massage therapists, he accidentally wakes up an ancient evil from an interdimensional asylum.