Billlie (Korean: 빌리; Japanese: ビリー) is a seven-member girl group formed by MYSTIC Story. They originally debuted with six members on November 10, 2021 with their first mini album “The Billage of Perception : Chapter One.”
On November 19, MYSTIC Story announced that Kim Suyeon, a former contestant of Girls Planet 999, would be added to Billlie as Sheon.
Korean: 문수아
Japanese: ムンスア
Korean: 수현
Japanese: スヒョン
Korean: 하람
Japanese: ハラーム
Korean: 츠키
Japanese: 月
Korean: 션
Japanese: スヨン
Korean: 시윤
Japanese: シユン