The album was released on February 12, 2020 by Victor Entertainment (VIZL-1706) in Japan and JPU Records (JPU060) in Europe and North America,[1] featuring a total of twelve songs, including the band's first double-A-side CD single “Masterpiece” and “Mabataki”.

The band paid greater attention to incorporating their personal feelings of joy, sorrow and vulnerability into the album.

Mami noted down what Haruna said to the audience during an emcee segment at one of their live performances, and turned the words into lyrics.

[6] In the second volume of their "her" label magazine, it was also revealed that Mami has an interest in Buddhist sayings and deliberately included the phrase "tenchi kaibyaku", which translates to "creation of heaven and earth" into the lyrics.

[3] In the second volume of their "her" label magazine, the band shared that when the song was still a demo, they sang gibberish in English to fill it out, until Rina picked up the word "Masterpiece" and began to pen the lyrics from there.

Rina, who wrote the lyrics, explained that the song taps on her own experience of wanting a special moment to not end, while still knowing deep down that the future is uncertain.

Mami, who wrote the music, pictured the song with a strong western image and included pistol-like sounds at the end of the demo.

It draws from her personal experience of forcing herself to adhere to her daily routine, such as eating meals and doing laundry, even when she is feeling down or frustrated.

The song uses a variety of instruments such as claves, cabasa, marimba and sleigh bells, some of which were played by Yusuke Takeda himself.

[6] It was arranged by Haruna's friend, Chiaki Satō, who created the atmosphere of the song by deliberately overlaying brass and wind instruments.

[6] The song was played on their radio show, Scandal Catch Up supported by Meiji Apollo, to commemorate Haruna's thirty-second birthday.

Rina wanted the song to capture her feminine worldview, and tasked Mami to instill an "80s pop" vibe in it.

The band further emphasized this by filming at a bright, colourful European-style apartment and dressing in feminine vintage clothing for the music video.

It is also the ending theme for the long-running anime GeGeGe no Kitarō, which the band members professed to be fans of when they were children.

[12] The band wrote the song with the intention of making it a staple at their live shows, hence deliberately incorporating parts that fans could sing along with them.

Rina, who wrote the lyrics, explained that the song was meant to describe the feeling of being able to reminisce about past memories and relationships without regret, and to being able to look forward with hope despite uncertainty of the future.