the story tells the story of a devout vampire hunter who is determined to annihilate all vampires so as to fulfill his desire to become a priest. in fact, his true identity is a descendant of a vampire, and his family also raises a vampire ancestor! with such a contradictory personality, how should we avoid the eyes and continue his hunting? there are endless cases of suspected mutant vampires. can the vampire hunter charlie and his dear master continue to hide the identities hidden behind the two, and at the same time solve the case and find out the person behind the scenes? who is the sacred voice calling on the master? what is the relationship between him and his master? the story of charlie, a descendant of vampire but also a vampire hunter, and his master, "the true ancestor vampire" revro