Dai Nagao
"Seasons" was written by Hamasaki, while production was handled by Japanese businessman and musician Max Matsuura. The song was composed by long-term collaborators Dai Nagao, whilst arrangement was handled by Naoto Suzuki. For the track's instrumentation, Suzuki played the keyboards, Naoki Hayashibe played the guitar, Takahiro Iida programmed and mixed the final composition, and Junko Hirotani provided background vocals.