Letter flow - 어쩌면 나는 살고 싶은 것일지도 몰라 (Maybe I want to live) (New Age)
Letter flow - 혼자 있고 싶은 날 (The day I want to be alone) (Feat. Hailey Jeong)
Letter flow - 난 아직 그때를 잊지 않았어요 (I haven't forgotten those days yet) (New Age)
Letter flow - 어느 봄을 그리며 (I miss the spring of those days)
Letter flow - Lost (new age)
Letter flow - 어느 날의 오후 (One afternoon) (Feat. NUITNUIT)
Letter flow - 추억은 아무런 힘이 없다 (Memories have no power) (New age)
Letter flow - 충분해 (Enough) (Feat. Sungah of Vanilla Acoustic)
Letter flow - 자꾸만 네가 보고 싶어 (I keep missing you) (New age)
Letter flow - 뭘 믿고 그렇게 멋진 거니 (Why are you so cool?) (Feat. Joo Yein)