임연 – I′ll be fine
Track 01 from Single '수령인 OST (O′PENing)'
임연 – 꿈의 왈츠
Track 01 from Single "꿈의 왈츠"
Release Date: 2023.11.16
임연 – 오늘, 우리
Track 01 from Single "오늘, 우리"
Release Date: 2023.04.25
임연 – Que Sera Sera
Track 01 from Single "살인자의 쇼핑목록 OST Part 4"
Release Date: 2022.05.19
임연 – With Love
Track 01 from Single "With Love"
Release Date: 2019.11.22
임연 – DIARY
Track 01 from Single "DIARY"
Release Date: 2019.04.25
임연 – 어떤, 밤
Track 01 from Single "불토엔 혼코노 episode 2"
Release Date: 2018.10.30
임연 – My Hero
Track 01 from Single "유령을 잡아라 OST Part 5"
Release Date: 2019.11.19
임연 – In My Heart
Track 01 from Single "악의 꽃 OST Part 2"
Release Date: 2020.08.19
임연 – Lost
Track 01 from Single "하늘에서 내리는 일억개의 별 OST Part 3"
Release Date: 2018.11.15