I think the best I can say about this manga is that it was unexpectedly amazing. Well worth the time I took to read it. At first, I was really hesitant because it semed more Shounen then Shoujo, but something about the artwork and the plot captivated me. I could clearly see the difference. Where Shounen usually drags on with fighting and no real plot, this one used the fighting as a device to showcase the hidden element in which you figure out later.
The main character, Akira, isn't off the bat amazing and he doesn't automatically fight for no reason, he's ver concerned when things dont seem to make sense. He was an amazing character, one with alot of faith and conviction that he couldn't outright show. Even though he was constantly beating up on his friends, you could see he was doing it for a reason.... Kinda. I also really enjoyed the fact that "other" people, I.E. Shisui/master, Homorabi, Kou, even the "children" saw Akira as being Akira and they were honest about their feelings. While they wanted to meet Ryouku again, they knew that Akira was legetimately a person. It was a little heartbreaking. What made me feel the most sad is that Shirogane, who played the good guy with the most faith in Akira, was actually completely opposite, and although he didn't hate Akira, he really yearned to see his best friend again. How can I explain it... It was like he was comical on the outside, but truly had a serious demeanor, and his mask was falling. His true nature began to show. Still, the emotions inside him were seething and writhing, and he was crumbling.
On the topic of the villain... I felt that he wasn't truly the villain. More like he was doing something that was terrible so that the all the blame would fall onto him. I think he just wanted to protect his counterpart. His whole reasoning is a little askew, but that was the only thing he could do. Even though he did something so terrible to Kengo, you can't really hate him. Even Akira felt that way....
So, whats left to say is that this manga is actually pretty damn good. Read it, okay?