Review of Volume 1 in the light novel series, Durarara!! by Ryohgo Narita.
From the Back Cover:
The Ikebukuro district in Tokyo is full of interesting people. A boy longing for the extraordinary. A hotheaded punk. An airheaded pseudo-stalker. An information broker who works for kicks. An underground doctor who specializes in truly desperate patients. A high school student infatuated with a monster. And a headless rider on a pitch-black motorcycle. Their story may not be a heartwarming one, but as it turns out, even weirdos like these sometimes fall in love.