This marked the only release with the original line-up that included member Seunghee, who left the group in April 2016.

In late-July 2015, MBK Entertainment announced that they would be debuting a new girl group called DIA in August 2015.

Their album would be produced by Shinsadong Tiger, Monster Factory and Bigtone and composed by Microdot, Sanchez and actor, Hyun-woo, with members Seunghee and Cathy also taking part in the composition of some songs.

DIA held a debut showcase at the Ilchi Art Hall in Seoul on September 14 and performed the album track.

[7] The group made their debut stage on September 17 on Mnet's M Countdown,[8] followed by performances on KBS' Music Bank, MBC's Show!