WooIn – Zzz
Track 01 from Single "Zzz"
Release Date: 2020.02.09
WooIn – 두 사람
Track 02 from Single "A calm"
Release Date: 2018.06.18
WooIn – ALONE
Track 01 from Single "A calm"
Release Date: 2018.06.18
WooIn – 그런 밤
Track 01 from Single "그런 밤"
Release Date: 2018.08.06
KODI GREEN, WooIn – 낙엽
Track 01 from Single "AUTUMN"
Release Date: 2019.10.30