Born in Sapporo, Hokkaido, Akiko moved to Aomori City during her third year of elementary school. She graduated from Aomori High School and decided to pursue voice acting in Tokyo. Her teacher and parents opposed her choice of career, but Akiko managed to persuade her homeroom teacher to give his endorsement. Eventually, both her parents agreed after seeing how hard she had been working in theater.
While studying at Senshu University Faculty of Law, Akiko made her voice acting debut in the Macross 7 television series in 1994. She graduated while performing various voice acting gigs. She also began working as radio personality for the Anilage program, having built her reputation as a voice actor worked series such as The Kindaichi Case Files and Fortune Quest L. She also worked in the Troubador Music Office, and then joined the Tokyo Actor's Consumer Co-op. By March 2017, she considered to work as a freelancer. She married composer Kaoru Wada in 2002.