| Performer / 歌と演奏 | ayumi hamasaki |
| Lyricist / 作詞 | ayumi hamasaki |
| Composer / 作曲 | Hana Nishimura, tasuku*, Kazuhiro Hara / 原一博*, D·A·I*, BOUNCEBACK*, CREA* |
| Arranger / 編曲 | CMJK, Yuta Nakano / 中野雄太, HΛL*, Toshiharu Umesaki / 梅崎俊春*, Takehito Shimizu / 清水武仁*, tasuku* |
| Programming / Programming | CMJK, Yuta Nakano / 中野雄太, HΛL*, Toshiharu Umesaki / 梅崎俊春*, Takehito Shimizu / 清水武仁*, tasuku* |
| Additional Programming / Additional Programming | Mayuko Maruyama / 丸山真由子*, Masahiro* |
| Synth / Synth | Toshiharu Umesaki / 梅崎俊春* |
| Guitar / Guitar | CMJK, Ryota Akizuki / 秋月良太, Takehito Shimizu / 清水武仁*, Susumu Nishikawa / 西川進*, tasuku* |
| Bass / Bass | CMJK, Chiharu Mikuzuki / 美久月千晴, Susumu Nishikawa / 西川進* |
| Drums / Drums | Tom Tamada / 玉田豊夢, Michio Kawano / 河野道生* |
| Strings Arrangement / Strings Arrangement | Gen Ittetsu / 弦一徹* |
| Strings / Strings | Yuko Kajitani Strings / 梶谷裕子ストリングス, Gen Ittetsu Strings / 弦一徹ストリングス* |
| DJ Scrach / DJ Scrach | DJ cool-k* |
| Additional Background Vocal / Additional Background Vocal | Junko Hirotani / 広谷順子*, Kaori Nishina / 仁科薫理* |
| Additional Chorus / Additional Chorus | a Boys, a |
| Audience / Audience | a Boys |
| Produced by / Produced by | max matsuura |
| Directed by / Directed by | Koji Morimoto / 森元浩二, Hidetomo 'KOME' Yoneda (avex trax) |
| Recorded by / Recorded by | Koji Morimoto / 森元浩二 |
| Mixed by / Mixed by | Koji Morimoto / 森元浩二, Shohei Matsumoto / 松本祥平 (HEAVENS WIRE) |
| Recorded at / Recorded at | prime sound studio form |
| Mixed at / Mixed at | prime sound studio form |
| Mastered by / Mastered by | Shigeo Miyamoto / 宮本茂男 |
| Mastered at / Mastered at | form THE MASTER |
| Artist Management Chief / Artist Management Chief | Kouji 'Ouji' Hashimoto (avex management inc.) |
| Artist Management / Artist Management | Tadashi Urakami, Masaaki Gyobu (avex management inc.) |
| Artist Management Supervisor / Artist Management Supervisor | Yasuto Hoyamatsu / 保屋松靖人 (avex management inc.) |
| Artist Brand Management / Artist Brand Management | Hideki 'Jackie' Endo (avex management inc.) |
| Fan Club Staff / Fan Club Staff | Kazuki 'Mr.KAZ' Okabe (avex management inc.) |
| Visual Producer / Visual Producer | Kiyoshi 'Mizumo' Utsumi (avex group) |
| Media Promotion / Media Promotion | All Promotion Division Media Room & Publicity Room Staff (avex entertainment inc.) |
| Sales Promotion / Sales Promotion | Kazuo Kosugi / 小杉和男, Takashi Saigo, Miyuki Ono, All AMI Staff (avex marketing inc.) |
| Tie-up Coordination / Tie-up Coordination | All Promotion Division Tie-up Room Staff faxex entertainment inc.) |
| Casting Coordination / Casting Coordination | All Promotion Division Casting Room Staff (avex management inc.) |
| A&R / A&R | Hidetomo 'KOME' Yoneda (avex trax) |
| A&R Chief / A&R Chief | Kentaro Furusawa (avex trax) |
| A&R Supervisor / A&R Supervisor | Hiroshi Ishimori / 石森洋 (avex trax) |
| A&R Executive Supervisor / A&R Executive Supervisor | Jun Harada / 原田淳 (avex trax) |
| General Producer / General Producer | Shinji Hayashi / 林真司, Takashi Araki, Ryuhei Chiba / 千葉龍平 (avex group) |
| Art Direction / Art Direction | Shinichi Hara / 原神一 |
| Design / Design | Hirotomi Suzumoto (momoya) |
| Photographer / Photographer | Kazuyoshi Shimomura (AVGVST) |
| Assistant Photographer / Assistant Photographer | Masayuki Kamo |
| Hair / Hair | Kazuyoshi Takahashi (ZACC) |
| Assistant Hair / Assistant Hair | Keisuke 'Rassya-' Omori, Norimoto 'Doumo-kun' Wakabayashi (ZACC) |
| Stylist / Stylist | Kei 'Okei' Ito (Two Culture Inc) |
| Assistant Stylist / Assistant Stylist | Yuko 'Dj' Honda (Two Culture Inc) |
| Costume Director / Costume Director | Akira Noda (Workaholik) |
| Nail Artist / Nail Artist | Kanako 'Bancho' Miura / 三浦'Bancho'加納子 (Three Peace) |
| Assistant Nail Artist / Assistant Nail Artist | Shingo 'Minazo' Sano |
| Make Up / Make Up | Jin 'Gori' Kiyota (Rond.) |
| Trainer / Trainer | So 'kurisuteru' Nagashima (tune:up) |
| Location Support / Location Support | Luis Hernandez, Stanly Izumi Kim (s.i.k.e.) |
| Creative Coordination / Creative Coordination | Naoki Ueda / 上田直樹 (avex marketing inc.) |
| CG Treatment / CG Treatment | Makoto Harikae, Hiroko Tanaka, Toru Sakuma (amana) |
| Quality Control / Quality Control | Masashi Shinabe, Toshiyuki Suzuki / 鈴木利幸 (avex marketing inc.) |
| DVD Authoring / DVD Authoring | Akitito Horikoshi (avex marketing inc.) |
| Video Clip Directed by / Video Clip Directed by | Wataru Takeishi |
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