Lol, yeah I think I remember reading or hearing that the anime didn't end how it should have, like with main characters dying and such. It's kind of like Fullmetal Alchemist. The first anime of it completly screwed up the storyline. But then they came out with Fullmetal Alchemist: Brotherhood and it followed the manga^^
Speaking of Fullmetal Alchemist, that is the one anime you MUST watch! Every otaku must watch it XD Haha *peer pressures you again*