"If It Is You (너였다면)" is a Korean song by Jung Seung Hwan, which was featured as the OST for the Korean drama "Oh My Ghost

[English translation:] I'll always be here Even if you can't see me Even if you forget about me That's okay When tomorrow comes And you suddenly become afraid The longer your nights grow I'll be by your side

"If You Are With Me" (그대가 있다면) is a heartfelt ballad by Jung Seung Hwan

"You're My Spring" (다시, 봄) by Jung Seung Hwan is a heartfelt song about finding warmth, comfort, and love in someone's presence