Artist: Hikaru Utada - Programming: Hikaru Utada - Piano: Paul Carter - Programming: Paul Carter - Conductor/Piano: Kei Kawano - Drums: Takumi Ogasawara - Electric Bass: Takeshi Taneda - Electric Guitar: Tsuyoshi Kon - String Arranger: Hikaru Utada - String Arranger: Paul Carter - String Arranger: Kei Kawano - Strings: Mamiko Amemiya - Recording Engineer: Atsushi Matsui - Mixer: Goetz B - Mastering Engineer: Randy Merrill