A seven-member South Korean girl group under Mystic Story, debuted on November 10, 2021. Members are Moon Sua, Suhyeon, Haram, Tsuki, Sheon, Siyoon, and Haruna.
Their name — spelled with three L’s — breaks down into “Bi” (Korean for rain), “11,” and “lie,” rooted in the group’s founding legend: “When the 11th bell rings in the middle of a purple rain, something strange happens.” The members keep this event a secret by lying about what occurred. This narrative forms the foundation of Billlie’s distinctive worldview — one built around mystery, duality, and the hidden “B-side” self that everyone carries within them.
Their discography is structured around two interconnected storylines — The Billage of Perception and The Collective Soul and Unconscious — spanning multiple chapter releases, establishing them as one of K-pop’s most conceptually ambitious acts. Several members brought notable pre-debut careers: Moon Sua trained at YG Entertainment for a decade, Suhyeon appeared in the web drama A-Teen, and Sheon placed tenth on Girls Planet 999 before joining as the group’s seventh member.
Profile image © MYSTIC STORY Entertainment. Provided for artist introduction.