Chieko was born in Tokyo, in 1978. She started to play the piano at age four. She was a member of the Tokyo Broadcasting Children Chorus Group for ten years. Her interest in music increases as she engages in various forms of musical experiences, such as appearing in concerts and on TV, playing with orchestras, and performing modern music. She studied harmonics and music composition, and in 1997 entered the Toho College of Music where she majored in composition. She graduated in 2001, and from in 2002, she went on to study at Berklee College of Music with a scholarship. At Berklee, she majored in Jazz composition and film scoring, and learned various styles of music composition, film scoring and composition using computers. While a student, she actively performed her own and others’ new compositions, and was granted the George Delerue Scholorship. In 2004, she graduated with a diploma in film scoring. In 2005, she returned to Japan and began her career as freelance musician. In 2006, she released and album with members of the chorus group, Little Carol, of which she is the performer and arranger. Currently, she is mainly active in composing and arranging classical style based music, and at the same time engages in music sheet preparation and producing film and theater music.