College freshman Morisato Keiichi gets more than he bargained for wen he goes dialing for dinner and gets an unexpected delivery - Belldandy, a real live, honest to goodness GODDESS! Belldandy grants him a wish, and Keiichi decides that what he really needs is a girlfriend just like her. And that's exactly what he gets. The mysterious Ultimate Force that enforces all Wish Contracts comes into play, and Keiichi and Belldandy are now inseparable. Then Keiichi remembers that his dorm has a strict rule: NO WOMEN ALLOWED!