Vampires

Vampires are blood-sucking species caused by the effects of  Bram Stoker's ability, which allows him to command and control them. However, Ōchi Fukuchi seems to have also control over the vampires, allowing him to order them whenever he can. Fyodor Dostoevsky is also able to control a vampire Chūya Nakahara through unknown means, using him as an enforcer to break through some of Meursault's defenses.

Description
People who turn vampires and are under someone's command have black sclerae, fangs, and distinct vein-like markings beneath their eyes similar to Bram's. Vampires can infect other people and turn them into vampires in just a single bite whether bitten alive or dead. They are also shown to have immense speed.

Some infected vampires are capable of masking their vampiric appearance in order to trick others and eventually turn them into vampires. In other words, they can act as a single life form. It is unknown whether or not they can be reverted back to their original selves.

Background
It was known that vampires exist before as Fukuchi once neutralized Europe's vampire threat. Several weeks after Bram's slumber at least eight years after his defeat against Fukuchi, Bram infects Ryūnosuke Akutagawa as ordered by Fukuchi per the Decay of the Angel's scheme. Subsequently, this triggered a vampire outbreak throughout Yokohama and later to other parts of the world, including the Republic of Nares.

Current Vampires

 * Bram Stoker
 * Ryūnosuke Akutagawa (bitten by Bram)
 * Ichiyō Higuchi (bitten by Akutagawa)
 * Gin Akutagawa (bitten by Higuchi)
 * Ryūrō Hirotsu (bitten by Gin)
 * Various mafiosi
 * Michizō Tachihara (bitten by Bram)
 * Unnamed airport passenger (unknown aggressor)
 * Prince of Nares (unknown aggressor)
 * Nares commander (bitten by Prince of Nares)
 * Various troops
 * Saigiku Jōno (bitten by Akutagawa)
 * Various airport police officers