"Shiroi Kisetsu" (白（しろ）い季節（きせつ）, lit. "White Season") is a song recorded by Japanese singer Misia, from the album Love Bebop. It was released as the album's lead single digitally on February 4, 2015, through Ariola Japan. It was released as a limited double A-side CD single alongside the song "Sakura Hitohira" a week later, on February 18, 2015. The song was co-written by Her0ism and Yuuki Idei, and arranged and produced by Her0ism. The song is featured as theme song on the soundtrack of the EX drama series Second Love starring Kazuya Kamenashi and Kyoko Fukada. The limited physical release includes a piano rendition of "Shiroi Kisetsu" as a hidden track.

On January 22, a trailer for the single was uploaded on Misia's official YouTube channel. The single features three B-sides: the Shiro Sagisu-produced "Mayonaka no Hide-and-seek", "Candle of Life", which Misia first performed during the 2014 installment of her Misia Candle Night concert series, and lastly a remix of the latter track. The CD single cover artwork was designed by longtime collaborator Mitsuo Shindō and photographed by Kristian Schmidt.

"Shiroi Kisetsu" is written in the key of A-sharp major with a common time tempo of 78 beats per minute. Misia's vocals span from F₃ to D₅ in modal voice, and up to E₅ in head voice.

"Shiroi Kisetsu" debuted at number 7 on the weekly RecoChoku Singles chart. The CD single made its debut at number 24 on the Oricon Singles Chart, with 4,000 copies sold in its first charting week. It charted for nine consecutive weeks and sold a reported total of 9,000 copies.

...
Wikipedia