She maybe a hawk, calling with a sparrow's song.....She is a viper can only go into a dragon if it's too close to the tail. The tail is said to be a warning sign of a bewildered evangelion inside. If you see her, run! Or simply tame her if you want to be a responsible person. This was the last of her kind, according to ''The Vampirism'' Vinruvian, she still haunts those that hunted her old self