《Sign》是一首讲述在若即若离的情感中萌生微妙信号的歌曲，细腻捕捉了彼此在奇妙紧张感中缓缓沁入心扉的瞬间。这首歌曲由RYUL演唱，通过细腻的旋律和歌词，展现了情感中的微妙变化。专辑中还包含了一首纯音乐版本的《Sign (Inst.)》。 ‘Sign’은 밀고 당기는 감정 속에서 시작된 작은 신호를 이야기하는 곡이다. 묘한 긴장감 속 서로에게 천천히 스며드는 순간들을 섬세하게 담아냈다. [Credits] 1. Sign Lyrics by RYUL Composed by RYUL, diff Arranged by nNn 2. Sign (Inst.) Composed by RYUL, diff Arranged by nNn Vocal by RYUL Chorus by RYUL Drums by diff Bass by diff Guitar by 김재중, nNn Synthesizer by diff, nNn Midi programing by diff All tracks Mixed & Mastered by 김규빈 @6elong [Cosm] Artist : RYUL Executive Director : Cosmic Boy A&R : Shin Narae, Won Minjoo Management : Lee Jinwook, Lee Jusang ⓒ Cosm