Abysmal

In the nightmare realm of Ruscilester, seven vampire sisters wage a merciless war against one another, each driven by the desire to rule supreme. Their savage struggle centers on "The Demon's Formula," a conceptual weapon capable of shattering the world's laws by turning its owner's twisted perceptions into reality. Whoever claims it could reshape existence itself. Shion, the youngest and weakest of the sisters, is dispatched to take the formula from the werewolf Count Vezcacino. During this mission, she crosses paths with a strange girl named Maroma. Maroma insists she is human, but she is in truth a chimera—a being that combines elements of both zombies and Frankenstein's monster. This inexplicable encounter, set against the backdrop of the sisters' bloody competition, marks the beginning of the end for the nightmare world.