In the high clouds above Earth lives the world of Angels. All angels grow their wings at age 7. The story begins on the 7th birthday of the Angel Queen's daughter, Kisa who wonders into the wrong place at the wrong time and falls to the earth to be caught in the arms of a boy named Aaron.
Years later, everyone in the kingdom has been killed and Kisa goes back to Earth to hunt the murderer before she can take over Earth. Hiding in a school, she finds Aaron but he has no recognition of her. Can she protect the Earth while her love is flocked by other girls?