Listen to 서서히 걷힐 장막 online. 서서히 걷힐 장막 is a Korean language song and is sung by Sung Rak Son. 서서히 걷힐 장막, from the album 비밀의 숲 2 OST, was released in the year 2020. The duration of the song is 2:52. Download Korean songs online from JioSaavn.