그래서 너는 나 언제부터 좋아했어?! [Credit] Composed by 그_냥, 정수민 Lyrics Written by 그_냥 Arranged by 정수민, 그_냥 Vocal & Chorus by 그_냥 Guitar played by 이태욱, 그_냥 Mixed by 조영록 @Make the Soul Studio Mastered by 권남우 @821Sound Album Cover Design by 이나연 Video Directed by 김다솔 Video Actor by 이채이, 성영주 Management Director 강민구 Executive Producer 최찬영