Strange powers, creepy phenomena, sadistic games- it's all been done before. Still, this particular spin on the concept is fast paced, well drawn, and perfect for Shonen Jump. Lots of other manga of this type can become tedious due to overly complicated, slow story lines. Not Enigma. This story is fast paced and stays that way through all the chapters that have been released. It's not too predictable, and the puzzles the characters must solve are neither painful to read nor cheap. The art is pretty standard, although the main character's design is a nice twist on the standard hero. There's a pretty obvious darktheme running through the art, but the whole thing is moving too fast to conjure up a thick atmosphere. Several characters personalities have been archetypes so far, especially the childhood friend. Even so, the characters are likable, and the mangaka is smart enough to jump right into the action without wasting too much time trying to endear them to the reader. When she does focus on making them likable it works well enough, if not exceptionally. All in all, this manga is a good read if you're looking for a shonen series that's a bit outside the norm. So far, it reads more like psyren than Death Note, but for some people that will be great. This seems like a title that would be excellent for marathons, given the frequent cliffhangers and quick pace.