Durarara!!, sometimes known as DRRR!!, is a series of light novels published by ASCII Media Works and written by Ryohgo Narita with illustrations by Suzuhito Yasuda which has also been adapted into a TV anime by Brain’s Base. A sequel to the original series of light novels set two years later, Durarara!! SH, was also launched in 2014.
The series begins when Mikado Ryugamine moves to Ikebukuro in Tokyo to attend Raira Academy alongside his childhood friend Masaomi Kida. Mikado then quickly becomes embroiled in a complex system of subcultures centered around Ikebukuro and its cast of unique characters including Celty Sturluson - the “Black Rider” and an Irish Dullahan trying to track down her stolen head, strong man and bartender Shizuo Heiwajima, information broker Izaya Orihara, and a mysterious gang known as The Dollars of which Mikado is the founding member.