Dementor's War Hymn

"Actually we look down on Veela, Goblins and Centaurs." "For those ridiculous protection rights, they actually degrade themselves into magical animals." "Only goblins, werewolves, giants, vampires and us dementors are still maintaining the pride of the human race..." In the ancient times of the ancestors, when the wizard picked up the magic wand, the dragon lost the sky, the giant lost the hill, the goblin was kicked off the throne, but we, the dementors, still retain the shadow from beginning to end... This is the story of how an unlucky guy led the tribe to develop and grow (happily causes trouble) after traveling through time and becoming a dementor...