The group consists of members James Sharp, Dexter Greenwood, Oliver "Olly" Quinn, Reese Carter, and Blaise Noon.

"[2] In November 2023, SM Entertainment signed a partnership with British television production company Moon&Back Media[3] to launch a new UK-based boy group.

[4] In July 2024, the reality show Made in Korea: The K-Pop Experience was announced to aired in August on BBC One and iPlayer.

[5] The series consists of six episodes, each one showcasing the journey of the five British members joining a hundred-day long K-Pop training program in South Korea and their evaluations from Yoon Hee Jun, a director at SM's Artist Development Center.

[6] In August, through a press conference of the reality show in London, the group's name was announced and the five members were formally introduced to the public.