레이(Rei), New Single [For a reason] [Track Credit] Lyrics by 레이(Rei) Composed by TwonTwon, 레이(Rei) Arranged by TwonTwon Mixed & Mastered by LiTrilla [Credit] Executive Producerㅣ레이(Rei), 석찬우 Co-ProducerㅣSTONESHIP ArtworkㅣWooneykim