지워지지 않는 첫사랑의 기억과, 닿을 수 없는 존재를 향한 그리움. -CREDIT- Executive producer : SUDI Album director : SUDI Album Cover models: 준지 & 서연 1.고래와 나비  Composed by SUDI, Admin.S, 리플리 (RIPLEY) Lyrics by SUDI Arranged SUDI, Admin.S Vocal : 리플리 (RIPLEY) Piano : SUDI Drums : SUDI, Admin.S Synthesizer : SUDI, Admin.S Bass : Admin.S Chorus : 리플리 (RIPLEY) Mixed by Admin.S Mastered by Admin.S 2.첫사랑의 계절 Composed by SUDI, Ae.L, 이범준, HWARANG Lyrics by 이범준, HWARANG Arranged SUDI, Ae.L Vocal : 이범준, HWARANG Piano : Ae.L Guitar : 박성범 Drums : SUDI, Ae.L Synthesizer : SUDI, Ae.L Bass : Ae.L Chorus : 이범준, HWARANG Mixed by 황동찬@Seoularchive   Mastered by 황동찬@Seoularchive 3.첫사랑의 계절 (Sped up) Composed by SUDI, Ae.L, 이범준, HWARANG Lyrics by 이범준, HWARANG Arranged SUDI, Ae.L Vocal : 이범준, HWARANG Piano : Ae.L Guitar : 박성범 Drums : SUDI, Ae.L Synthesizer : SUDI, Ae.L Bass : Ae.L Chorus : 이범준, HWARANG Mixed by 황동찬@Seoularchive   Mastered by 황동찬@Seoularchive 4.첫사랑의 계절 (Inst.) Composed by SUDI, Ae.L, 이범준, HWARANG Arranged SUDI, Ae.L Piano : Ae.L Guitar : 박성범 Drums : SUDI, Ae.L Synthesizer : SUDI, Ae.L Bass : Ae.L Mixed by 황동찬@Seoularchive   Mastered by 황동찬@Seoularchive 5.고래와 나비 (Inst.) Composed by SUDI, Admin.S, 리플리 (RIPLEY) Arranged SUDI, Admin.S Piano : SUDI Drums : SUDI, Admin.S Synthesizer : SUDI, Admin.S Bass : Admin.S Mixed by Admin.S Mastered by Admin.S