- Truth or Dare - EP · 2014
- Hawwah - EP · 2015
- Talk About S. - EP · 2012
- Kiss or Kill (From “MISSING 9”) - Single · 2017
- Hawwah - EP · 2015
- Truth or Dare - EP · 2014
- Hawwah - EP · 2015
- 임이 오는 소리 - Single · 2016
- Hawwah - EP · 2015
- Talk About S. - EP · 2012
- Talk About S. - EP · 2012
- End Again - EP · 2016
- Truth or Dare - EP · 2014
Music Videos
- 2012
- 2015
Compilations
About GAIN
- HOMETOWN
- Gangseo District
- BORN
- 20 September 1987
- GENRE
- K-Pop