hayawn(하얀) - 여름날의 너 (Feat. SER!N(세린)) [Credit] Lyrics by hayawn Composed by hayawn Arranged by hayawn Vocal by SER!N Background Vocal by SER!N Guitar by 김의주 Piano by hayawn Percussion by hayawn bass by hayawn Mixed by hayawn Mastered by 권남우 @ 821 Sound Album Artwork by SER!N, 햇살이 Photographer by 새라 Production Assistant 김예지 Executive Producer 마티(MATHI) Presented by DAISY MUSIC