Summoning Night

Record A: "This is a story that took place during the Witch's Night." Record B: "This is an ancient and mysterious ritual that summons demons from all walks of life to fight in this world." Record C: "This is a secret history of fighting and alliance between summoners, showing various human natures." Record D: "This is an intertwined story of countless epics and myths, heroes and sinners, demons and gods." Tonight is the night of the witch; a fierce battle is about to break out.