The EP was released by Yuehua Entertainment on December 1, 2021, and contains five tracks, including the lead single "Pirate".

On November 15, 2021, Yuehua Entertainment announced Everglow would be releasing their third extended play titled Return of the Girl on December 1.

[2] On November 22, the track listing was released with "Pirate" announced as the lead single.

[5] On November 28, the choreography performance teaser video for "Pirate" was released.

[8] Prior to the extended play's release, on December 1, 2021, Everglow held a live showcase event online to introduce the EP and communicate with their fans.