어둑어둑한 파란색의 겨울. 이맘때면 내 안에 어느새 자리 잡고 있는 블루 　　 　　 　　[Credit] 　　 　　Produced by 화자(HWAJA), PlayboyMusic 　　Lyrics by 화자(HWAJA), PlayboyMusic 　　Composed by 화자(HWAJA), PlayboyMusic 　　Chorus by 화자(HWAJA) 　　Keyboards by PlayboyMusic 　　Recorded by 김호진 @M Plus Studio 　　Mixed by PlayboyMusic 　　Mastered by 성지훈 (Francis Jihoon Seong) @JFS Studio 　　Artwork by 조민희