Download MP3 Kang Seung Won & Choi Jung Hoon - 세상에 서투른 연인들의 노래 (Us Against World) (Piano Ver.) from album 세상에 서투른 연인들의 노래 (Us Against World) just for review, Please support the Artist/Band by buying their original song "Kang Seung Won & Choi Jung Hoon" Available on iTunes, Spotify, JOOX, Amazon, or other Official Music Store. Best regard.