This Ai Yori Aoshi special is based off a chapter in the manga. In it, Kaoru and Aoi discuss their hopes for the future and they got to that point. Basically, it's just a rehash of the series as a whole and has no new plot developments. The art and sound is the same as the rest of the series, so no new developments there. But if your a fan of Ai Yori Aoshi, then you can't miss this special.