편지 [ Credits ] 1. 발자국 Lyrics by DaNTe' (단테) Composed by Saka ayumu, DaNTe' (단테) Arranged by DaNTe' (단테) Mixed by 유재민 Mastered by 유재민 2. 편지 Lyrics by DaNTe' (단테) Composed by yeol, DaNTe' (단테), JOLLY Arranged by yeol, JOLLY Mixed by 유재민 Mastered by 유재민