I hear alot of people talking about this anime, and I know its very popular, but i have never seen it. So what is it about, and what makes it so popular?

i have no idea, ive never seen it....heck, i havent even heard of it until like a couple of days ago.....

I myself miss this anime when a local tv network show the series in my country.. and I regret not watching the show.

Hell, maybe i should just buy the anime. LOL And answer my own question.