Watch Ah! My Goddess OVA
Ah! My Goddess is about the story of a young man named Keiichi Morisato, who is a college student. One day, he accidently calls the wrong number and finds himself connected to a strange Goddess Hotline service. After he calls this number, he notices a goddess by the name of Belldandy coming out of his mirror in front of him in his dorm. After this happens, Keiichi gets kicked out of the dorm and he decides to move in with Belldandy inside an ancient shrine, where he also meets her sister, Skuld and Urd.