College student Keiichi Morisato thought it was a prank when a strange, beautiful young woman appeared in his dorm room one night. But his unexpected visitor is literally a goddess from Heaven, Belldandy, come to grant him any single wish of his choosing.

Alone in his dorm on a Saturday night, Nekomi Tech's Keiichi Morisato dials a wrong number that will change his life forever --- reaching the Goddess Technical Help Line. Granted one wish by the charming young goddess Belldandy --- a wish for anything in the world --- Keiichi wishes she would stay with him always!