Hunters of Satan's Monsters: "Legend of the Rolling Calf"

It is a science fiction, supernatural thriller. It is about a man who, after living for forty years, realizes he is only ten years old—being that he was born on a leap day—and belongs to an order of supernatural beings who live for as long as three hundred years. These beings work alongside humankind and other hybrid beings in a secret organization that is set up worldwide to defend humanity from the various evils that traverse the earth. He is recruited and trained to use his special power...