It's been a very long time since I've been waiting for releases of a manga, and this one was a very welcomed breathe of fresh air.
I've read a couple of Yamamoto's other works; she's got a very unique and pretty art style-- her uke's are all very attractive and cute, while her seme are just as cute, but manage a sense of masculinity about them. Unfortunately, she's not top-notch when it comes to storytelling
However, with Sakiya, it gives her art a whole new twist-- the collaboration between the two is amazingly good with its great, developed plot and wonderful images full of emotion and feeling.
The characters are extremely well-thought out, and all very likable, even Hidetoshi's abusive lover. You're able to see all sides of emotions from all the characters, and can understand why they do the things they do, and why they feel they way they feel.
What really shined for me about this was the drama and angst-- there's so much of it! On every page, I felt like my heart was wrenching for what Hidetoshi was going through, and how Kengo was feeling about it, even after his resolve. If you're a fan, you'll absolutely love this.
The story is no where near shallow, and it's full of depth and meaning. If you want a worthy story that's more than just uke-in-distress-seme-to-the-rescue, you'll absolutely find that here.