Durarara!!

is a Japanese light novel series written by Ryogo Narita, with illustrations by Yasuda Suzuhito. The series began publication on April 10, 2004 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Durarara!! and Durarara!! SH have been licensed for an english release by Yen Press under their Yen On Imprint.

Synopsis
In Tokyo's downtown district of Ikebukuro, amidst many strange rumors and warnings of anonymous gangs and dangerous occupants, one urban legend stands out above the rest—the existence of a headless "Black Rider" who is said to be seen driving a jet-black motorcycle through the city streets.

Mikado Ryuugamine has always longed for the excitement of the city life, and an invitation from a childhood friend convinces him to move to Tokyo. Witnessing the Black Rider on his first day in the city, his wishes already seem to have been granted. But as supernatural events begin to occur, ordinary citizens like himself, along with Ikebukuro's most colorful inhabitants, are mixed up in the commotion breaking out in their city.

Characters

 * Mikado Ryuugamine
 * Masaomi Kida
 * Anri Sonohara
 * Shizuo Heiwajima
 * Izaya Orihara
 * Celty Sturluson
 * Shinra Kishitani
 * Kyohei Kadota
 * Kasane Kujirai
 * Erika Karisawa
 * Walker Yumisaki
 * Tom Tanaka
 * Seiji Yagiri
 * Namie Yagiri
 * Simon Brezhnev
 * Saburou Togusa
 * Mika Harima
 * Kinnosuke Kuzuhara
 * Shingen Kishitani
 * Saki Mikajima
 * Haruna Niekawa
 * Ruri Hijiribe
 * Varona
 * Aoba Kuronuma
 * Kururi Orihara
 * Mairu Orihara
 * Akane Awakusu
 * Igor
 * Chikage Rokujo
 * Emilia Kishitani
 * Ran Izumii
 * Mizuki Akabayashi
 * Jinnai Yadogiri
 * Sloan

Durarara!!
The manga adaptation of the first arc of the light novel: with art by Akiyo Satorigi. It was serialised in Square Enix's Monthly GFantasy and released under their GFantasy Comics Super imprint from December 2009.

Durarara!! Saika Arc
The manga adaptation of the second arc of the light novel: with art by Akiyo Satorigi. It was serialised in Square Enix's Monthly GFantasy and released under their GFantasy Comics Super imprint from February 2012.

Durarara!! Yellow Scarves Arc
The manga adaptation of the third arc of the light novel: with art by Akiyo Satorigi. It was serialised in Square Enix's Monthly GFantasy and released under their GFantasy Comics Super imprint from October, 2013.

Durarara!! Re:Dollars Arc
The manga adaptation of the fourth arc of the light novel: with art by Aogiri. It was serialised in Square Enix's Monthly GFantasy and released under their GFantasy Comics Super imprint from July 2015.

Minidura!!
A Chibi spin-off of the light novel. It has art by Youko Umezu and was serialised in Dengeki Maoh and released under the Dengeki Comics NEXT imprint from April 2014.

Anime
The anime adaptation of the light novel series, produced by Brain's Base, aired for 24 episodes in 2010. A second season of the anime was produced by Studio Shuka and released in a split 3-cour series between 2015 and 2016.
 * see: Durarara!! (Anime)