21 year old Keiichi Morisato, life unfolds when he accidentally dials the wrong number. From out of the mirror Belldandy, a first class goddess, is sent to help Keiichi by granting only one wish "No matter what it is." By fault Keiichi wishes Belldandy to be with him forever. Soon after Belldandy's older sister Urd second class goddess appears from the heavens to play as the lovely Cupid as twist of events occur her plan soon backfires. Skuld, Belldandy's and Urd's youngest sister also second class goddess appears from the heaven in an act to return her dearly love sister Belldandy back to the Heavens. Throughout the anime Keiichi and Belldandy come across many obstacles testing their love for one another. Do Keiichi and Belldandy have what it takes to go against the Gods? Or will their love force them to separate for eternity? Ah! My Goddess is an anime for those who love Comedy, Fantasy, Magic, and Romance.

The series as a whole is original in the sense of what it presents in a way, yeah sure there is the stereotypical loser guy who cant for the life of him get a girlfriend or have any luck, but the difference is, that well being that goddesses are now a part of his life, the whole romantic side of things isnt stereotypical or cliche as such. It's more original than anything else in the sense that he isnt trying to win the girl or the girl isnt trying to win the guy, its each others relationship development and the events that go on around them.