Michiru Satou

Ko's new companion, Nazuna, could offer him dark gifts and a vampire's immortality. But there are conditions that Ko must meet before he can sink his teeth into vampirism, and he'll discover just how far he's willing to go to satisfy his desires.

In the year 2024, the world has collapsed. Grotesque monsters lurk amongst the ruins of Japan, while remaining people scrape together what they can to survive. Kiruko, an odd-job girl in Nakano, accepts a mysterious woman's dying wish to take a boy named Maru to a place called Heaven. Maru is convinced that there will be a boy there who looks exactly like him.

At the beginning of the 21st century, more than half of the human race died and civilization retreated due to the global flood called " Tempest ". Around that time, the existence of "vampires" was confirmed along with humans. However, not everyone can become a vampire, and those who inherit the blood of Faust, the progenitor of vampires, do not become vampires, and some even become beasts and die. Good vampires are given new names, and the rest are collectively called "rezas." On the other hand, the vampires begin their journey in search of why they were born, in search of the meaning behind it, and in search of the "mother" who is called the vampire's hope.