- Toki No Tsubasa (Movie "the Princess and the Pilot" Main Theme) - Single · 2011
- Musical Moments · 2008
- Musical Moments · 2008
- Live Moments · 2013
- Live Moments · 2013
- Live Moments · 2013
- Live Moments · 2013
- Musical Moments · 2008
- Musical Moments · 2008
- Arigatou - EP · 2012
- MementoMori Lament Collection Vol.1 (3) · 2023
- 映画大好きポンポさん サウンドトラック · 2021
- SEIKO - EP · 2015
Albums
- 2013
Singles & EPs
- 2015
About Seiko Niizuma
- BORN
- 8. Oktober 1980
- GENRE
- Vocal