Kim Ki Won

- Penetrates coldly Pain (with Kim Ki Won)
- Bulgasal: Immortal Souls (Original Television Soundtrack) Special · 2022
- Happy End
- Romance Is a Bonus Book (Original Television Soundtrack) · 2019
- Your Day (feat. Kim Bom)
- It's Okay to Not Be Okay (Original Television Soundtrack) · 2020
- Connect
- Link: Eat, Love, Kill (Original Television Soundtrack) Special · 2022
- Promise
- Surgeon Bong Dal Hee (Original Television Soundtrack) · 2007
- Powerdance
- Romance Is a Bonus Book (Original Television Soundtrack) · 2019
- I′m Happy (Yoo Jin-Woo Theme)
- I'm Happy ('Namib' [Original Soundtrack]) - Single · 2025
- 어린 날의 고백
- 시간여행 Project - EP · 2026
- 초원사진관
- 시간여행 Project - EP · 2026
- 초원사진관
- 시간여행 Project Pt. 2 - Single · 2026

시간여행 Project - EP

시간여행 Project - EP

2026
I'm Happy ('Namib' [Original Soundtrack]) - Single

I'm Happy ('Namib' [Original Soundtrack]) - Single

2025
It's Okay to Not Be Okay (Original Television Soundtrack) Special Track, Vol. 1 - EP

It's Okay to Not Be Okay (Original Television Soundtrack) Special Track, Vol. 1 - EP

2020
Romance Is a Bonus Book (Original Television Soundtrack), Pt. 8 - Single

Romance Is a Bonus Book (Original Television Soundtrack), Pt. 8 - Single

2019