Cooro is a crow +Anima and the main character of the series. His +Anima marking is located on each of his arms below the shoulder and is a spiral with five feather shaped markings decreasing in size around part of the swirl. He first appeared when he was captured by a greedy circus ringer and marketed as the "Dark Angel". The circus is where Cooro meets Husky, who was captured before him. Cooro was not only known as a dark angel there- throughout the series people mistake him for a messenger of death or a sign of bad luck. He also has the unique ability to sense the presence of other +Anima.