Art:
Rather bad, to say it frankly. She can't draw real expressions in the faces.
The drawings of humans are something "artistic". You use this if you want to draw the attention of the viewer to some special qualities of the things you draw. And when you think that otherwise this qualities would not be visible. But, the Gods knows i have tried, i could not find which qualities the mangaka wanted to show me whit her drawing style.
Also the drawings are something detail reduced. This is perfectly OK, IF the mangaka is concentrated on the really important aspects of the story by drawing so. But than again, this is done in this manga at best halfhearted.
In my opinion the mangaka tried and failed to draw the manga in a more avan-gardistic style. I could read the manga whit out being disgusted by the art, but it was also no real fun to see the drawings.
The story:
The story about alone Ririko is great. She dissolves slowly in something which is frightening and elusive. Great read.
But the (almost) side story about the "super cool", "super smart" and "super skillful" attorney, which enfolds parallel to Ririkos story, is unneeded and is bad. Yes, in the end the two persons are forcefully thrown together by the mangaka. But the attorney is not needed for the ending of the manga at all. Especially for the 4 last pages of the manga is the attorney non-existent. The attorney is boring: he founds everything out in no time, he knows what would happen if he acts in this or that way, but he is the tragic hero who can not win against the corrupt world. In comparison to the story of Ririki this is boring and superficial. Of course there is no character development for this guy, he is perfect from begin on.
But if you can ignore this "side story", you can, whit a voyeuristic enthusiasm and inner horror, devour Ririkis story being unable to stop reading.
I'm happy that this is not continued. This ending is really cool the way it is. The 4 last pages have even a Tarantino feeling. But yes, it is made ready for a second volume.