STEFANO X RUTA – NYX (Feat. Youyeon) [Credit] Executive Producer : 285 Art & Design by Randi Ryu 1. NYX (Feat. Yuyeon) Lyric by STEFANO X RUTA, Yuyeon Composed by STEFANO X RUTA Arranged by STEFANO X RUTA Vocal by Yuyeon Mixed by STEFANO X RUTA Mastered by Kwon Namwoo @ 821 Sound Mastering