: A megalomaniac genius who intends to use the apocalypse to build her own "kingdom," using zombies as an undead army.

The series you are looking for is (キングダムオブザZ), a zombie apocalypse manga written by Saizou Harawata and illustrated by Lon Watanuki. It is a survival horror story with a twist: the survivors are often more dangerous than the zombies themselves. Story Overview

: A "happy-go-lucky psycho" who revels in the violence of the new world.

Five days after a sudden zombie outbreak in Japan, high school student is cornered by his undead former classmates. He is rescued by two girls, Miki Sekigahara and Karin Nagiri , but soon discovers their unsettling true natures:

The story follows Satou as he becomes "Citizen #1"—essentially a zombie decoy and errand boy—in Miki's growing empire. Series Status and Availability Go to product viewer dialog for this item. Kingdom of Z Vol. 1