A very unique manga, very subtle in the way it handles a controversial issue. I absolutely love the way the mangaka doesn't gloss things over or take the easy way out -- the brother's agony and shame and stifled desire aren't romanticized.
I frankly don't understand why people are so freaked out and sickened by the incest factor. I mean, Jesus, we read manga about murders and rapes, don't we? So how come a manga about consensual incest is somehow worse? I don't get it. To condemn a manga just because of its theme is foolish. Instead, a manga should only be condemned for poor quality -- and neither the art nor the writing in this manga deserves criticism.
Well, my only complaint is that the ending came a little too quickly; I would've liked to see how our main couple resolved the issues they'd face in the future.
Then again, that's only a sign of how deeply involved I became with the characters, and how much I came to care for them.
The brother's characterization in particular is superb. I don't think I've ever seen an anti-hero so completely explored. Wow. I feel like I can understand what he's going through, even when I'm being disturbed by his actions and emotions.
Just give this manga a chance. Don't knock it just because of the theme, okay?