유나 (YuNa (AOA)) - 툭툭 (날 녹여주오 - Melting Me Softly OST Part 5)

유연정 (Yoo Yeon Jung (WJSN)) - 꼭 말해줘 (Tell Me, Please) [날 녹여주오 - Melting Me Softly OST Part 2]

Letters I Never Sent

AILEE (에일리) - 너의 눈물이 나의 눈을 적실 때 (When Your Tears Wet My Eyes) (Lovers of the Red Sky 홍천기 OST Part 4)

효린 (Hyolyn) Just Stay (Thirty But Seventeen OST Part 2)

[Single] Roy Kim - Pinocchio OST Part 2

Bbyu (Sung Jae, Joy) - Young Love (We Got Married)

Solar 솔라 (MAMAMOO 마마무) - 나는 그대고 그대는 나였다 (Always, be with you) (Lovers of the Red Sky 홍천기 OST Part 2)

NoWay

Park Boram - Falling (Hyde Jekyll, Me OST)

다비치 (DAVICHI) – Please Don't Cry (더 킹 영원의 군주 - The King Eternal Monarch OST Part 6)