Where You've Seen Her: Oh My Goddess/Ah! My Goddess
Her Story: Belldandy was sent to Earth to answer the call of college student Keiichi Morisato, who unwittingly called the Goddess Hotline. Thinking the whole thing was a gag, Keiichi wishes that Belldandy would stay with him forever, forcing Belldandy to do so. Belldandy makes an attempt to make the best of her circumstances.
Why Is She Memorable? Most of the time she's the standard "magical girlfriend." But she also has an independent streak and proves that she has her own mind. She can do all kinds of very powerful magic when necessary, especially when she takes off her ear charm.
Trivia: Why the differences in titles? This was a change made when the show was brought to the United States. Author Kosuge Fujishima said that his intention was "Oh My Goddess," but didn't mind the change in title.
Tomorrow -- a teen who sees spirits becomes a reaper.