1 | First Love- recording engineer:
- Ugajin Masaaki (from 1998-09 until 1998-12)
- programming:
- Kawano Kei
- synthesizer programming:
- Iida Takahiro and Momo Masayuki
- producer:
- Miyake Akira and Utada Sking Teruzane
- mixer:
- Goh Hotoda (on 1999-01-23)
- guitar:
- Akiyama Hironori
- keyboard:
- Kawano Kei
- strings:
- Goto Yuichiro strings
- vocals:
- Utada Hikaru
- strings arranger:
- Kawano Kei
- arranger:
- Kawano Kei
- recorded at:
- Burnish Stone Recording Studios in Setagaya, Setagaya, Tokyo, Japan (from 1998-09 until 1998-12), Studio Terra in Higashi-Shinagawa, Shinagawa, Tokyo, Japan (from 1998-09 until 1998-12) and Toshiba EMI Studio (from 1998-09 until 1998-12)
- mixed at:
- Bunkamura Studio in Dōgenzaka, Shibuya, Tokyo, Japan (on 1999-01-23)
- recording of:
- First Love
- lyricist and composer:
- 宇多田ヒカル
- publisher:
- 日音
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