Murata was born in Inzai, Chiba Prefecture, Japan, in 1979. As a child she often read science fiction and mystery novels borrowed from her brother and mother, and her mother bought her a word processor after she attempted to write a novel by hand in the fourth grade of elementary school. After Murata completed middle school in Inzai, her family moved to Tokyo, where she graduated from Kashiwa High School (attached to Nishogakusha University) and attended Tamagawa University.
After University, many novels, with nominations and wins for literary prizes, trailed along in her wake.
Throughout her writing career Murata has worked part-time as a convenience store clerk in Tokyo.
