Billlie (빌리) is a South Korean girl group under Mystic Story. The group debuted in November 2021 and is known for combining pop, R&B, performance-focused music and a continuing narrative universe. Its members are Moon Sua, Suhyeon, Haram, Tsuki, Sheon, Siyoon and Haruna, with Japanese members Tsuki and Haruna adding an international element to the lineup. The official fandom name is Belllie’ve. Kpop Profiles
As of August 2026, Haruna is on a temporary hiatus for health reasons, while Billlie continues activities as a six-member performing lineup. She remains a member of the group. Soompi
Members at a Glance
| Member | Real Name | Birthday | Age* | Nationality | Role |
|---|---|---|---|---|---|
| Moon Sua | Moon Sua | September 9, 1999 | 27 | South Korean | Main rapper, lead vocalist |
| Suhyeon | Kim Suhyeon | January 15, 2000 | 26 | South Korean | Main vocalist, lead dancer |
| Haram | Kim Haram | January 13, 2001 | 25 | South Korean | Main vocalist |
| Tsuki | Fukutomi Tsuki | September 21, 2002 | 24 | Japanese | Main dancer, vocalist |
| Sheon | Kim Suyeon | January 28, 2003 | 23 | South Korean | Main dancer, lead rapper |
| Siyoon | Kim Siyoon | February 16, 2005 | 21 | South Korean | Main rapper, lead dancer |
| Haruna | Osato Haruna | January 30, 2006 | 20 | Japanese | Lead vocalist, lead dancer, maknae |
Member data is based on Billlie’s published member information and current profile references. Kpop Profiles
Who Are the Billlie Members?
Moon Sua (문수아)
Moon Sua is one of Billlie’s main rappers and a strong vocal performer. Her extensive trainee experience and recognizable rap delivery helped establish her as one of the group’s central performers.
Key Facts:
- Stage Name: Moon Sua
- Birth Name: Moon Sua
- Birthday: September 9, 1999
- Nationality: South Korean
- Agency: Mystic Story
- Position: Main Rapper / Lead Vocalist
- MBTI: ISFP
- Zodiac Sign: Virgo
- Group: Billlie Kpop Profiles
Suhyeon (수현)
Suhyeon is a vocalist and dancer whose performances help anchor Billlie’s vocal side. She has also taken part in activities beyond the group’s music releases.
Key Facts:
- Stage Name: Suhyeon
- Birth Name: Kim Suhyeon
- Birthday: January 15, 2000
- Nationality: South Korean
- Agency: Mystic Story
- Position: Main Vocalist / Lead Dancer
- Zodiac Sign: Capricorn
- Group: Billlie Kpop Profiles
Haram (하람)
Haram is one of Billlie’s principal vocalists and is particularly associated with her distinctive vocal tone. Her musical training also includes experience with practical music and piano.
Key Facts:
- Stage Name: Haram
- Birth Name: Kim Haram
- Birthday: January 13, 2001
- Nationality: South Korean
- Agency: Mystic Story
- Position: Main Vocalist
- MBTI: INTP
- Zodiac Sign: Capricorn
- Group: Billlie Kpop Profiles
Tsuki (츠키)
Tsuki is Billlie’s Japanese main dancer and one of the members most associated with the group’s expressive performance style. Her dance-focused stage presence has become one of Billlie’s recognizable characteristics.
Key Facts:
- Stage Name: Tsuki
- Birth Name: Fukutomi Tsuki
- Birthday: September 21, 2002
- Nationality: Japanese
- Agency: Mystic Story
- Position: Main Dancer / Sub-Vocalist
- MBTI: ENFP
- Zodiac Sign: Virgo
- Group: Billlie Kpop Profiles
Sheon (션)
Sheon joined Billlie after competing on Girls Planet 999 and became the group’s seventh member. She combines dance and rap with the broader vocal and performance line.
Key Facts:
- Stage Name: Sheon
- Birth Name: Kim Suyeon
- Birthday: January 28, 2003
- Nationality: South Korean
- Agency: Mystic Story
- Position: Main Dancer / Lead Rapper
- Group: Billlie Kpop Profiles
Siyoon (시윤)
Siyoon is one of Billlie’s rappers and dancers and has also worked with Moon Sua in the duo Moon Sua X Siyoon. She contributes to Billlie’s performance identity through both rap and choreography.
Key Facts:
- Stage Name: Siyoon
- Birth Name: Kim Siyoon
- Birthday: February 16, 2005
- Nationality: South Korean
- Agency: Mystic Story
- Position: Main Rapper / Lead Dancer
- Group: Billlie Kpop Profiles
Haruna (하루나)
Haruna is Billlie’s youngest member and one of its Japanese members. She contributes to the group’s vocal and dance performances and has a distinct role within Billlie’s younger line.
Key Facts:
- Stage Name: Haruna
- Birth Name: Osato Haruna
- Birthday: January 30, 2006
- Nationality: Japanese
- Agency: Mystic Story
- Position: Lead Vocalist / Lead Dancer / Maknae
- MBTI: ISTP
- Zodiac Sign: Aquarius
- Current Status: Temporary hiatus
- Group: Billlie Kpop Profiles
Billlie: Who Is the Oldest and Youngest?
Moon Sua is the oldest member, while Haruna is the youngest and maknae. Kpop Profiles
Which Billlie Members Are Foreign?
Billlie has two Japanese members: Tsuki and Haruna. Moon Sua, Suhyeon, Haram, Sheon and Siyoon are South Korean. JVC Music
Billlie MBTI Types
| Member | MBTI |
|---|---|
| Moon Sua | ISFP |
| Suhyeon | Publicly reported; verify before updating |
| Haram | INTP |
| Tsuki | ENFP |
| Sheon | Publicly reported; may change |
| Siyoon | Publicly reported; may change |
| Haruna | ISTP |
MBTI information is best treated as a periodically updated profile item rather than a permanent fact. Kpop Profiles
Billlie Group Profile
| Information | Details |
|---|---|
| Group Name | Billlie |
| Korean Name | 빌리 |
| Members | Moon Sua, Suhyeon, Haram, Tsuki, Sheon, Siyoon, Haruna |
| Agency | Mystic Story |
| Debut Date | November 10, 2021 |
| Fandom Name | Belllie’ve |
| Group Type | K-pop girl group |
| Japanese Members | Tsuki, Haruna |
Billlie’s name and identity are connected to the group’s storytelling concept and its recurring mystery-themed universe. Kpop Profiles
Billlie Career Timeline
| Year | Major Career Highlight |
|---|---|
| 2021 | Billlie debuted with the Billage of perception: chapter one. |
| 2022 | Expanded its story-driven identity through additional album chapters and new music. |
| 2023 | Released the Billage of perception: chapter three and continued Japanese activities. |
| 2024 | Released appendix: Of All We Have Lost. |
| 2025 | Continued international exposure and appeared on Apple TV+’s KPOPPED. |
| 2026 | Released the full album the collective soul and unconscious: chapter two. |
Billlie’s 2026 full album was released on May 6 and included “ZAP,” “WORK” and other tracks. Billlie
Billlie Comebacks & Releases
Billlie’s discography is built around a mixture of album chapters, stand-alone singles and concept-driven releases. Their 2026 full album the collective soul and unconscious: chapter two marked another major chapter in that musical evolution. Billlie
Billlie Performances & Events
The group has appeared on music programs, festivals, concerts, fan events and international projects. Their appearance on Apple TV+’s KPOPPED gave Billlie an additional international performance platform. Marie Claire
Billlie FAQ
How many members are in Billlie?
Billlie has seven members: Moon Sua, Suhyeon, Haram, Tsuki, Sheon, Siyoon and Haruna.
Who is the oldest Billlie member?
Moon Sua, born September 9, 1999.
Who is the youngest Billlie member?
Haruna, born January 30, 2006.
What is Billlie’s fandom name?
Billlie fans are called Belllie’ve. Billlie Fandom
Who are Billlie’s Japanese members?
Tsuki and Haruna.
Is Haruna still a member of Billlie?
Yes. Haruna is still a member but is currently on a temporary hiatus. Mystic Story announced that Billlie’s schedules would proceed with six members during her absence. Soompi