Low-end project

- 연애를 망친 건… 바로 나란 걸 알았다
- The 1st Shop of Coffee Prince 'Coffee Aroma Excitement ' (Original Television Soundtrack) · 2007
- Love Is Weaken When It Comes Out Of Mouth
- The 1st Shop of Coffee Prince 'Coffee Aroma Excitement ' (Original Television Soundtrack) · 2007
- Love Dims and Moon Shines
- Triple (Original Soundtrack) · 2009
- 보고 싶어서, 안고 싶어서, 만지고 싶어서. (From "트리플")
- We Will Be Together : Pastel Season Edition · 2008
- Basketball Court
- Unintentional Love Story (Original Televion Soundtrack) · 2023
- Time Is Eternal & A Moment (Instrumental)
- Unintentional Love Story (Original Television Soundtrack), Pt. 4 - Single · 2023
- Time Is Eternal & A Moment
- Unintentional Love Story (Original Television Soundtrack), Pt. 4 - Single · 2023
- Time Is Eternal & A Moment (Korean Version)
- Unintentional Love Story (Original Television Soundtrack), Pt. 4 - Single · 2023
- I See You Like I See the Sun
- Summer Strike (Original Soundtrack) · 2022
- I See You Like I See the Sun (Instrumental)
- Summer Strike, Pt. 12 (Original Soundtrack) - Single · 2022
- First Meet
- Cheese in the Trap (Original Television Soundtrack) [Special Edition] · 2016
- Never Fall In Love Again
- Heart to Heart (Original Television Soundtrack) · 2015
- The Symptoms of Falling for You
- Heart to Heart (Original Television Soundtrack) · 2015

Time Is Eternal & A Moment (From "Unintentional Love Story") [Korean Version]

2023
I See You Like I See the Sun

2022

Unintentional Love Story (Original Television Soundtrack), Pt. 4 - Single

Unintentional Love Story (Original Television Soundtrack), Pt. 4 - Single

2023
Summer Strike, Pt. 12 (Original Soundtrack) - Single

Summer Strike, Pt. 12 (Original Soundtrack) - Single

2022
Cheese in the Trap, Pt. 8 (Original Television Soundtrack) - EP

Cheese in the Trap, Pt. 8 (Original Television Soundtrack) - EP

2016