No. 6 is the most mature, beautiful shounen-ai anime I've ever seen, and I've seen a lot of them. Its animation and storyline is unmatched by any other anime of its kind (or Yaoi anime for that matter). On top of that, the characters are beautifully developed and easy to fall in love with. I was absolutely hooked after the first episode, and ended up watching every other episode in a row (that's about 4 and a half hours worth of episodes). I guess I just loved everything about No. 6. The theme songs that played in the opening and ending credits, the hilarity, the romance, the music... it just thrilled me. You'd be hard-pressed to find another yaoi/shounen-ai anime that's of a better quality than this. I think it's the best anime of its kind, the cream of the crop. Put it this way. As I was nearing the end of the series, I started to feel anxiety because I'd never see a new episode again. Now that's what I call a powerful show!
