Arranged By [Pre-production] – Yuichiro HondaArranged By, Keyboards, Programmed By – Akira NishihiraFinger Snaps – SkinggGuitar – Yuji ToriyamaKeyboards [Additional] – Philippe Saisse, Yuichiro HondaProgrammed By [Additional] – Yutaka NakamuraProgrammed By [Synthesizer] – Nobuhiko NakayamaRecorded By – Goh Hotoda, Masaaki Ugajin, Masashi Kudo

Arranged By – Kei Kawano, Utada HikaruArranged By [Strings] – Neko SaitoProgrammed By [Synthesizer] – Kazuhide TsunemiProgrammed By, Keyboards, Piano [Acoustic] – Kei KawanoRecorded By – Goh Hotoda, Masaaki UgajinStrings – Great Eida Strings

Arranged By, Arranged By [Strings], Programmed By, Keyboards – Kei KawanoGuitar – Hironori AkiyamaProgrammed By [Synthesizer] – Masayuki Momo, Takahiro IidaRecorded By – Masaaki UgajinStrings – Yuichiro Goto Strings

Arranged By – Jimmy Jam & Terry Lewis, Utada HikaruDrum Programming – Xavier SmithGuitar – Dave BarryInstruments [Others] – Jimmy Jam & Terry LewisRecorded By – Masaaki Ugajin, Mitsuhiro Indoh, Steve Hodge

Arranged By, Programmed By, Keyboards – Shinichiro MurayamaElectric Guitar – Yoshiaki KusakaRecorded By – Masaaki Ugajin, Seiji Motoyama

Acoustic Guitar – Hironori AkiyamaArranged By – Kei Kawano, Utada HikaruKeyboards, Programmed By – Kei KawanoProgrammed By [Basic] – Utada HikaruProgrammed By [Synthesizer] – Kazuhide TsunemiRecorded By – Masaaki Ugajin

Arranged By, Programmed By, Keyboards, Guitar – Kei KawanoEffects [Talking Modulator] – Hidenobu OkitaProgrammed By [Synthesizer] – Takahiro IidaScratches [Tape], Recorded By – Masaaki Ugajin

Arranged By – Kei Kawano, Utada HikaruCello – Abe Masahi GroupKeyboards, Programmed By – Kei KawanoProgrammed By [Basic] – Utada HikaruProgrammed By [Synthesizer] – Kazuhide TsunemiRecorded By – Atsushi MatsuiViolin – Great Eida Group

Acoustic Guitar – Char, Hironori Akiyama, Hisashi, Skingg, Yuichiro "Larry" Honda, Yuji ToriyamaArranged By – Kei Kawano, Utada HikaruKeyboards, Programmed By, Piano [Acoustic] – Kei KawanoProgrammed By [Basic] – Utada HikaruProgrammed By [Synthesizer] – Kazuhide TsunemiRecorded By – Masaaki Ugajin

Arranged By – Rodney Jerkins, Utada HikaruEdited By [Pro-tools] – Harvey Mason Jr., Paul FoleyMusic By – Takuro Kubo, Utada HikaruProgrammed By, Rap – Rodney JerkinsRecorded By – Harvey Mason Jr., Rodney Jerkins

Arranged By – Kei Kawano, Utada HikaruElectric Bass – Mitsutaka SaitoProgrammed By [Synthesizer] – Kazuhide TsunemiProgrammed By, Keyboards, Guitar [Sample] – Kei KawanoRecorded By – Atsushi Matsui, Masaaki Ugajin

Arranged By [Additional] – Kei KawanoArranged By [Rhythm], Programmed By [Rhythm] – Taka & SpeedyArranged By, Programmed By, Keyboards – Akira NishihiraElectric Guitar – Tsuyoshi KonProgrammed By [Synthesizer] – Nobuhiko NakayamaRecorded By – Masaaki Ugajin, Masashi Kudo

Arranged By, Programmed By [Synthesizer] – Jun Isomura, Toshiyuki MoriChorus [Additional] – Julian HernandezGuitar – Masayoshi FurukawaKeyboards – Toshiyuki MoriRecorded By – Bob Allecca, Masaaki Ugajin, Mike Brown, Takehiko Kamata

Arranged By – Alex Richbourg, Jimmy Jam & Terry LewisDrum Programming – Alex RichbourgInstruments [Others] – Jimmy Jam & Terry LewisKeyboards – Darnell DavisRecorded By – Steve Hodge

Arranged By – Kei Kawano, Utada HikaruElectric Guitar – Hironori AkiyamaGuitar [Sample] – Kanzo, Yuichiro "Larry" HondaKeyboards, Programmed By – Kei KawanoProgrammed By [Basic] – Utada HikaruProgrammed By [Synthesizer] – Kazuhide TsunemiRecorded By – Atsushi Matsui, Masaaki Ugajin