Really, now, that so many people think anything about this manga is "consensual" makes me fear for our planet's collective sanity.
Anyway, this kind of manga is about a dime a dozen, so I'll try to be brief. The so-called "consensual" relationship in this manga begins with the seme, a certified surgeon (let that sink in for a moment), blatantly LYING to the uke about him having hepatitis. Hepatitis, I might add, that is the direct result of the seme's own malpractice. The REASON he tells this very serious lie for which he should be serving prison time is because he wanted to keep the uke at the hospital in order to molest and rape him in the privacy of his own hospital room. Apparently, when he stitched up the uke's wound, the uke got hot, leading the seme to believe that the uke was secretly a masochist. Therefore, the seme saw it as his civic duty to "release" the masochistic desires of the uke by forcefully detaining and sexually abusing him. THAT is the beginning of this "consensual" relationship. I kid you not. You can't make this stuff up. Of course, the uke objects to being assaulted at first, but that doesn't make it rape or anything because he secretly wants it. And when the uke actively starts seeking more sexual attention from the seme, that's not Stockholm syndrome or anything; clearly, that's "true love." Or something.
Look, I'm not saying you can't enjoy your mindless smut. I enjoyed the smuttiness of this one quite a bit, although it DID start to get boring toward the end because, despite the "kink of the chapter" set up, the author rushed through each scene as if her only concern were forcing as much crazy sex into each chapter as possible. I'm just saying that, as (hopefully) cognitive beings, we can't simply go out into society, point out individuals to whom we are sexually attracted and say, "S/he's a masochist," and then proceed to molest the object of our affection to "bring out her/his masochistic side." I'm sorry, but that just isn't something that can happen. And, furthermore, you should understand this, Mr. Hotshot Surgeon Seme: A lot of us get hot while having wounds sewn up. And I don't mean sexually. Wanna know why? Because it's fricking painful and nerve-wracking and terrifying! Who the hell wouldn't get a little flushed when goddamned needles are being dragged in and out of their skin? Doesn't mean they're turned on! Yeesh!
So yeah, the art was good for a yaoi, and the smut was decent in this one, at least for a time, but I'm so pissed by the awful depictions of an allegedly "consensual" relationship that this one gets a 3 from me. My best advice for people into BDSM but not the creepy-ass justifications of rape and molestation is to look at the pictures and ignore the dialogue entirely.