When Keiichi Morisato accidentally calls heaven, the goddess Belldandy descends to grant him one wish. But when Keiichi wishes for a goddess like her to stay with him always, he gets more then he bargained for! Now Keiichi must survive Belldandy's crazy sisters, jealous women, lecherous men, evil demons, and college life! Will Keiichi ever be able to be with Belldandy? Comedy and romance meet for a match made in heaven, with "Ah! My Goddess"!