Recorded in English, the EP utilizes hip hop and R&B with musical styles such as UK drill and Jersey club.

In late July 2023, the release of XG's debut extended play was announced by their label Xgalx for September 27.

The agency noted that the EP would come in two different versions: "X", which "focuses on XG's mysterious and sharp" image, and "G", which "shows a pure and refreshing side".

"[3] The Korea Herald wrote that it "expand[s] on XG's sonic scape, weaving through multiple new genres the likes of UK Drill and Jersey Club to the group's essential hip-hop and R&B sound.

"[4] Carmen Chin of NME gave the EP a rating of four out of five stars; in "X-Gene", she praised Jurin, Cocona and Harvey's verses as "exceptionally fluid", with "their voices and tones complementing each other as trap beats pulsate", and Chisa and Juria's "vocal prowess".