Michiru Oshima (大島ミチル) was born in Nagasaki on the 16th of March, 1961. She graduated from the School of Composers at the Kunitachi College of Music. Oshima began producing music while she was still in school, her first soundtrack being released in 1992. She worked as an arranger, doing music work on movies, commercials, television programs, animated programs, institutions, and various other types of work, including the music for the anime Full Metal Alchemist.