It was released by FlyingDog as the album's sixth and final single exclusively on digital platforms on April 1, 2015.

[2] It is the theme song to the four-part animated film series Tamayura: Sotsugyō Shashin.

[3] "Kore Kara" was composed in the key of C-sharp major and set to a tempo of 74 beats per minute,[4] while Sakamoto's vocals span from G♯3 to C♯5.

Sakamoto wrote "Kore Kara" specifically for Tamayura: Sotsugyō Shashin, the last chapter in the Tamayura series, one she has been involved with since its beginning in 2010 and for which she has performed several opening themes, including "Yasashisa o Tsutsumareta Nara", "Okaerinasai" and "Hajimari no Umi".

In an interview with the music website Natalie, she revealed that she wrote the song with in mind the dream of one day performing it on stage at the Saitama Super Arena,[5] which Sakamoto realized in 2015 while touring to celebrate her 20th anniversary.