Chiaki Igarashi (五十嵐 千晶, Igarashi Chiaki) is a game-exclusive character who debuted in Durarara!! 3way standoff. She is a first year student at Elizabeth Girls' Academy, a prestigious private school for girls located in the center of Ikebukuro.
Chiaki has dark brown hair and brown eyes. She is normally seen wearing her high school uniform, which consists of a white collared shirt and a light grey sweater with a yellow bow tie, a brown jacket, a tan skirt, and black boots.
Chiaki has a bright and outspoken personality. She also has a penchant for motorcycles and martial arts.
- In Durarara!! Relay, she mentions that her love of martial arts was influenced by Yuuhei Hanejima's performance in the Camilla Saizou films.