Thanks for the link!
I voted. Gave the series a 4. I am finding it mostly enjoyable... and the suspense is fairly riviting. My only complaint is with the somewhat ham-fisted (even for manga) character development, including a couple of awkward stabs at romance that don't seem to fit.
One of the more interesting aspects... Not that I have any issues with such a thing at all... but I get this odd feeling that the main characters could suddenly "swing" the other way. Probably not the authors intention though.
I'm also curious to know why this manga doesn't have a "mature" tag. There's some rough stuff in this manga.