Artist: Hikaru Utada - Producer: Teruzane Sking Utada - Producer: Akira Miyake - Recording Arranger: Kei Kawano - Vocals: Hikaru Utada - Keyboards: Kei Kawano - Programming: Kei Kawano - Synthesizer Programming: Takahiro Iida - Guitar: Hironori Akiyama - String Arranger: Kei Kawano - Strings: Yuichiro Goto Strings - Recording Engineer: Masaaki Ugajin - Recording Engineer: Goh Hotoda - Mixer: Goetz B - Mastering Engineer: Randy Merrill