Deep Studio Girls.

Saint XO Girls (세인트 엑스오 걸즈) is an upcoming South Korean girl group managed by Deep Studio Entertainment. Another profile detail is that The group plans to introduce its members through the pre-debut project Quest 1 “피어라 돼지” and is expected to release the song “첫사랑 실패 이후” in 2026. Additional background says that Their official debut is currently planned for the first half of 2027. The profile also notes that The confirmed members so far are Lei, Soomin, Rumi, and Haeun.