Durarara!! is a story of a dullahan who worked in Ikebuburo as an underworld courier, an anonymous internet-based gang called “The Dollars” and the mess that unfolds around Ikebuburo most dangerous persons. The story shows how the character lives intersect and the knowledge of each on the common incident.

Mikado Ryūgamine, a young boy with short black hair and grayish-blue eyes wearing zipped-up white and green jacket, jeans and black sling bag.  He desired to have exciting life in the big city and moves to Ikebuburo with his childhood friend Masaomi Kida  whom he has not seen since he was young to attend Raira Academy. Their uniform consists of gray buttoned tuxedo over a long sleeved white polo with black neck tie, gray pants and black shoes. Masaomi Kida has golden brown hair, brown eyes and usually wears a white long sleeve hoodie, jeans and sneakers. During his time in yellow scarves, he wore a black jacket over a white shirt along with his yellow scarf.

They met on the train station and set out in the streets of Ikebuburo. Masaomi told Mikado about the people such Shizuo Heiwajima, a violent and superhuman strong man, Izaya Orihaya, the information broker, and the gang “The Dollars’. Shizuo has light brown hair oftenly wears blue sunglasses and trademark bartender suit.

 After knowing some side characters, Mikado meets the Black rider, a local legend riding a black bike which neighs occasionally like a horse around the Ikebuburo city. She is Celty Sturluson, an Irish pale white skin dullahan who’s looking for her stolen head; brown haired and blue eyes. She wears a helmet when she goes out, all black biker jumpsuit with black gloves, and shoes. She also wears a yellow and blue helmet that vaguely resemble the shape of a cat's head.