On December 27, 2016, CLC confirmed that they would be releasing a new album in January, with a different concept from the group's existing image.

It was also stated that their new album aimed to show a more charismatic, hip-hop and chic image.

[4] The album's title track "Hobgoblin" is an EDM trap song written by Hyuna, Seo Jaewoo, Big Sancho and Son Youngjin, people who had previously worked the 4Minute song "Crazy".

[8] The EP sold 3,975 physical copies, placing at number 30 on the Gaon Album Chart for the month of January 2017.

[9] In the US, the mini-album entered and peaked at number 6 on Billboard's World Albums on the week ending February 4, 2017.