Continuity

From OMGWiki

[edit] How does the TV series redefine the canon?

The television series had the original concept of animating the entire manga series, but the manga had many side stories that were apparerently weren't necessary; the main focus was to focus on what the other animated forms of Ah! My Goddess couldn't focus on, which was the development of the relationship between Keiichi and Belldandy. All in all, the TV series is like a companion to the manga; it rewrites the story from the very beginning to where it did (The Lord of Terror arc) with all of the updated characters and motives.