...just because everyone else on this page is like "Ahhhhh! Horrible manga!". It's not that bad. In fact, I liked it very much.
At several points in my life, I've read Black Bird from the start and either loved it or hated it. Misao starts off weakly, but she does eventually start getting it together and fighting for what she wants (I must say, though, it took her forever to figure out the concept. Geesh.) I wouldn't say she's a protagonist you'd want to emulate, but she's no longer completely spineless by any stretch of the imagination.
Kyou's pervertedness throws me for a loop. He's too serious and formal-looking most of the time to really carry off the whole "I am a pervy man!" properly... and I don't even like pervy men. I understand it's supposed to be a contrast, but there is hilarious contrast, and there is contrast which throws the reader off, and this is a case of the latter. That said, though, I admire his loyalty, I laugh at his lines, and I think altogether that he's a good guy. There are just better ways than the blatant "touch Misao whenever wherever!" way he does it.
The art is fair. The plot is cliched, but well-executed. The pacing is good enough to be emotionally tugging from time to time. Overall, this is a manga I liked; funny, sweet, a little smutty (but not quite... although it's going to happen, and I'm not really looking forward to it), emotional and dramatic.
It doesn't have any outstanding good points, but it takes all the average points it has and somehow works them all together into an excellent story.
That is cliche. And kind of cheesy. But it's the fun kind. It was an enjoyable read - if you feel like the genre, you could do worse.