Announced on September 15, 2023, the album features various Vocaloid and J-pop songs fans voted on for her to cover.

In May 2022, her management team held a poll on social media for fans to select songs for her to cover.

In March 2023, another poll was run on social media by Ado's management regarding what songs fans wanted for her to cover on an album.

A 15-second teaser was released on YouTube, along with limited edition bonus goods being announced to be included at select Japanese retailers.

[4][5] Six of ten confirmed songs were originally announced, including "Crime and Punishment", "Unravel" by Toru Kitajima, and "Villain" by Teniwoha.