Evelyn (Evie) is a low ranked Guardian Angel and her days consist of protecting a human named Melanie. Melanie is a quiet, shy girl and Evelyn's job is easy. When Melanie grows up she gets entangled with the wrong group and tries to overthrow the government and wage war on the neighbouring Vampire country and its royals. Melanie gets caught right in the middle of this as she catches the attention of the Vampire prince. Evelyn now has to do everything to keep her safe.