Producer: Akira Miyake - Artist: Hikaru Utada - Producer: Hikaru Utada - Producer: Teruzane Skingg Utada - Recording Arranger: Hikaru Utada - Recording Arranger: Kei Kawano - Recording Engineer: Atsushi Matsui - Mixer: Steve Fitzmaurice - Vocals: Hikaru Utada - Keyboards: Kei Kawano - Programming: Kei Kawano - Programming: Hikaru Utada - Synthesizer Programming: Kazuhide Tsunemi - Violin: Great Eida Group - Cello: Masashi Abe Group - String Arranger: Hikaru Utada - String Arranger: Kei Kawano