For the extended play, Momoland worked with a variety of producers including Shinsadong Tiger, Byun Moo Hyuk, Pinkmoon, Beverly Kids, Big Bread and Judy.

To promote the extended play, the group performed on several South Korean music show programs, such as M Countdown and Inkigayo.

Members Daisy and Taeha didn't take part in the extended play due to health and personal reasons.

[2] On March 13, MLD Entertainment announced that the group will return with seven members, while members Daisy and Taeha will not take part due to health and personal reasons, and will rejoin the group in the future [3] The extended play was released on March 20, 2019, by MLD Entertainment and Kakao M as a digital download through several music portals, including MelOn and Apple Music.

[4][5] In South Korea, the extended play debuted at number seven on the Gaon Album Chart for the week ending March 23, 2019.