Engineer [Additional] – Darren HeelisGuitar – Nick Meier*Mixed By, Recorded By – Steve FitzmauriceProgrammed By [Additional] – Alexis Smith, Joe HensonProgrammed By, Vocals [All] – Utada HikaruRecorded By [Vocals] – Komori Masahito*

Arranged By [Strings] – Simon Hale, Utada HikaruConductor, Piano [Acoustic] – Simon HaleDouble Bass – Andy WaterworthDrums – Ian ThomasEngineer [Additional] – Darren HeelisGuitar – Ben ParkerLeader – Everton NelsonMixed By, Recorded By – Steve FitzmauriceProgrammed By, Vocals [All] – Utada HikaruRecorded By [Vocals] – Komori Masahito*

Arranged By [Strings] – Simon Hale, Utada HikaruConductor, Piano [Acoustic] – Simon HaleDrum Programming [Additional], Percussion – Darren Heelis, Steve FitzmauriceDrums – Ian ThomasElectric Bass, Guitar – Ben ParkerEngineer [Additional] – Darren HeelisLeader – Everton NelsonMixed By, Recorded By – Steve FitzmauriceRecorded By [Strings, Assistant] – Jeremy MurphyRecorded By [Strings] – Steve Price Recorded By [Vocals] – Komori Masahito*Vocals [All] – Utada Hikaru

Arranged By [Strings] – Simon Hale, Utada HikaruConductor – Simon HaleDrum Machine, Drums – Sylvester Earl Harvin*Drum Programming [Additional] – Darren Heelis, Steve FitzmauriceElectric Bass – Jodi MillinerEngineer [Additional] – Darren HeelisFeaturing – 椎名林檎*Guitar – Ben Parker, Tanaka Yoshito*Leader – Everton NelsonMixed By – Steve FitzmauriceProgrammed By, Vocals – Utada HikaruRecorded By – Matsui Atsushi*, Steve FitzmauriceRecorded By [Additional], Recorded By [UH Vocals] – Komori Masahito*Recorded By [SR Vocals] – Inoue Uni*

Drums – Sylvester Earl Harvin*, Ian ThomasEngineer [Additional] – Darren HeelisHarp – Asakawa Tomoyuki*Mixed By – Steve FitzmauriceRecorded By – Matsui Atsushi*, Steve FitzmauriceRecorded By [Vocals] – Komori Masahito*Vocals [All] – Utada Hikaru

Acoustic Guitar – Tanaka Yoshito*Arranged By [Brass], Programmed By, Vocals – Utada HikaruDrum Programming [Additional] – Darren Heelis, Steve FitzmauriceElectric Bass – Francis HyltonEngineer [Additional] – Darren HeelisFeaturing – 小袋成彬*Leader, Trumpet – Sid GauldMixed By – Steve FitzmauricePercussion – Will FryRecorded By – Matsui Atsushi*, Steve FitzmauriceRecorded By [Vocals] – Komori Masahito*Tenor Saxophone – Andy Panayi Trombone – Mark Nightingale

Arranged By [Strings], Programmed By, Vocals [All] – Utada HikaruConductor, Leader [Band], Piano [Acoustic] – Kawano Kei*Drum Programming [Additional] – Darren Heelis, Steve FitzmauriceDrums – Tamada Tom*Electric Bass – Yamaguchi Hiroo*Engineer [Additional], Synth [Synth Bass] – Darren HeelisLeader [Strings] – Suhara Anzu*Mixed By – Steve FitzmauriceRecorded By – Matsui Atsushi*Recorded By [Vocals] – Komori Masahito*

Arranged By [Brass], Programmed By, Vocals [All] – Utada HikaruArranged By [Strings] – Simon Hale, Utada HikaruConductor, Electric Piano [Wurlitzer], Piano [Acoustic] – Simon HaleDrum Programming [Additional] – Darren Heelis, Steve FitzmauriceDrums – Sylvester Earl Harvin*Electric Bass – Jodi MillinerElectric Guitar – Ben ParkerEngineer [Additional] – Darren HeelisLeader [Brass], Trumpet – Sid GauldLeader [Strings] – Everton NelsonMixed By, Recorded By – Steve FitzmauriceRecorded By [Vocals] – Komori Masahito*Tenor Saxophone – Andy Panayi Trombone – Mark Nightingale

Drums – Sylvester Earl Harvin*Edited By [All Vocals] – Komori Masahito*Electric Bass – Yamaguchi Hiroo*Featuring – KohhProgrammed By, Recorded By [All Vocals], Vocals – Utada HikaruRecorded By – Matsui Atsushi*, Mike HornerWritten-By – Chiba Yuki*

Drum Programming [Additional] – Darren Heelis, Steve FitzmauriceDrums – Sylvester Earl Harvin*Electric Bass, Guitar – Ben ParkerEngineer [Additional], Synth [Synth Bass] – Darren HeelisMixed By – Steve FitzmauriceProgrammed By, Vocals [All] – Utada HikaruRecorded By – Komori Masahito*, Mike Horner

Arranged By [Strings] – Kawano Kei*, Paul Carter , Utada HikaruConductor, Leader [Band] – Kawano Kei*Drums – Ogasawara Takumi*Electric Bass – Taneda Takeshi*Electric Guitar – Kon Tsuyoshi*Leader – Amemiya Mamiko*Mixed By – Goetz B.*Music By, Programmed By – Paul Carter , Utada HikaruPiano – Paul Carter Recorded By – Matsui Atsushi*Vocals [All], Words By – Utada Hikaru