バッカーノ！
BACCANO！
http://www.baccano.jp/
Based on a shounen light novel.
Based on a light novel thats published under the shounen light novel label
Dengeki Bunko.
For now there are 9 volumes released of this light novel.
The covers can be seen
here.
Author: Narita Ryohgo (成田良悟)
Illustrator: Enami Katsumi (エナミカツミ)
A shounen manga based on the light novel is starting in February 2007 issue of the shounen(boy's) manga magazine
Dengeki Comic Gao!.
The manga is titled:
Baccano! 1931 The Grand Punk Railroad
Genre: Shounen, Action