In a word: Speechless. This anime is amazing. The plot twisted so much it probably would have looked like a towel being wrung out if you could see a plot. Threw me an almost infinite number loops. Main characters have absolutely amazing backstories. The antagonist is so ridiculously cruel that I wish he was real so we could drop a nuke on him. (And for somebody who doesn't even exist to get me this riled up is a feat in itself.) The art is glorious. The sound is flawless, and the one mistake I could find was so miniscule that it couldn't detract from the overall score I gave it if it wanted to. Overall, this site's scoring system is too weak to be accurate. I would have given it an infinity/10, but that couldn't be done. Simply sublime.
Rokuro is my favorite character, followed closely by Benio, then Kinako, Mayura, Seigen, Ryogo, and so-on-so-forth. Watch. Read. Just see this serie, okay? Good, 'cause I'm outta here!