Like the other reviewer, I also think that the ratings are a bit harsh for this one. The story and characters seem more complex than what you normally find in yaoi. The mangaka has given the series a shot of realism by giving her characters deep-seated family and personal issues beyond just the normal worries over their romantic entanglements. There's a moodiness to the piece that's certainly more mature in feel than your typical yaoi sex romp, and for that alone, it makes this manga worth a look.
However, despite all the positives, I just can't quite bring myself to recommend it. For one thing, the story ends abruptly in the middle of the first volume. Although the story is continued in a sequel, so far, no chapters of the sequel have been scanlated, and unless they are, or unless you are able to read raws, I would suggest giving this one a as there is no hint of a possible resolution in the chapters that appear in this volume. Moreover, from what I have seen of the raws, the story doesn't appear as though it will conclude in even the second volume. (Which I find strange as I don't think there is THAT much of a story here to tell that it needed to go on for more than a volume or two.)
The other reason why I am hesitant to recommend this story to anyone is that, quite frankly, I just don't like the main uke. He and the seme are childhood friends and the seme is obsessively in love with him, but for the life of me, I can't figure out why. The poor kid is just so dull, a point made all the more glaring when comparing him to his increadibly vivacious older brother. The older brother is an instant attention-grabber with his free-spirited approach to life (apparently, sitting naked on the rooftop and paying the harmonica was one of his hobbies as a teenager); the manga instantly livens up whenever he appears. As the reader, you're interested in finding out how he became the way that he is. Compare this to the main uke whose standout features are that he is obsessed with crows' feathers and astronomy--and denying that his very obviously gay brother is gay--and you've got a character who makes things drab just by his very presence. He's hard to sympathize with: he's utterly dense about his best friend's feelings for him (or really, his best friends feelings about anything at all), is willfully blind about brother's sexuality, and is also entirely unconcerned about his brother's feelings of also not wanting to inherit the family buisness (the uke wants to foist things off on him no matter what so that he can go study astronomy in college). As a side character, I might not have minded him, but not as the romantic lead. (About the only thing he has going for him is that he has a very stereotypical "uke" appearance, which for me personally, is not an especially positive thing.) Stretching a nice, but not especially dramatic story out past 2 volumes if it features a main character that I'm apathetic towards also makes the manga difficult for me to recommend. I really do wish the mangaka could've ended it in the first volume.