The manga is ongoing and irregular, and, at present, there are 66 chapters released (Or, at least, able to be found on the internet.)
This manga was very interesting, and, while not excessively happy or funny (It posesses more of a mindscrew-esque quality to it) it is an extraordinarily good read and a very interesting, captivating story. I love manga like these. ^_^ As such, I will rate this manga 8 out of 10, and I highly recommend it.
The author needs to write faster, I want more chapters of this.