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CompanyMystic Entertainment
Year Debut2021
Year Active2
Year DisbandedN/A

Not Ranked


Billlie (빌리; debuted Nov 10, 2021) is a seven-member South Korean girl group under Mystic Story. The group debuted on November 10, 2021. The members of Billlie are: Tsuki, Siyoon, Suhyeon, Haram, Sua, Sheon, and Haruna.

No. Members7
MembersTsuki, Siyoon, Suhyeon, Haram, Sua, Haruna, Sheon
Oldest MemberSua (born Sep 09, 1999)
Youngest MemberHaruna (born Jan 30, 2006)
DebutNov 10, 2021
CompanyMystic Story

Billlie Member Ages

Billlie Age Ranking

Ranked from oldest to youngest.

1. Moon SuaSep 09, 199924 years old
2. SuhyeonJan 15, 200023 years old
3. HaramJan 13, 200122 years old
4. TsukiSep 21, 200221 years old
5. SheonJan 28, 200320 years old
6. SiyoonFeb 16, 200518 years old
7. HarunaJan 30, 200617 years old

Billlie Member Heights

Billlie Height Ranking

Ranked from tallest to shortest.

1. Siyoon1.71 m (5'7")
2. Tsuki1.65 m (5'5")
3. Moon Sua1.64 m (5'5")
4. Haram1.63 m (5'4")
5. Suhyeon1.63 m (5'4")
6. Sheon1.62 m (5'4")
7. Haruna1.62 m (5'4")


Billlie is comprised of seven girl members born between 1999 and 2006. Their names are: Tsuki, Siyoon, Suhyeon, Haram, Sua, Sheon, and Haruna.

Their ages ranged from 15 to 22 years old at the time of their debut in November 2021. The oldest member is Moon Sua (born Sep 9, 1999). The youngest member is Haruna (born Jan 30, 2006).

In terms of ethnicity and nationality, Billlie has 5 Korean members and 2 foreign members. The 2 foreigners are Haruna and Tsuki, both from Japan.


In terms of positions, there is no official leader in Billlie. The main vocalists of the group are Suhyeon and Haram. The main rappers are Siyoon and Moon Sua. The main dancer is Tsuki. The members also hold other positions of lead/sub dancer, rapper, and vocalist.

Here are the positions of each of Billlie's members:

Moon Suamain rapper, lead vocalist
Suhyeonmain vocalist, lead dancer, sub rapper
Harammain vocalist, lead dancer
Tsukimain dancer, sub vocalist
Siyoonmain rapper, lead dancer
Harunalead dancer, sub vocalist, maknae
Sheonrapper, dancer

Fun Facts and Trivia

  • The tallest member of Billlie is Siyoon with a height of 171 cm (5'6'').
  • The shorest member is Haruna with a height of 162 cm (5'4'')
  • The debut date of November 10, 2021 has a special meaning. There are three 1s in the date (11/1) similar to how Billlie has three Ls.

Moon Sua


Stage Name: Moon Sua

Full Name: Moon Su A

Country of Birth: Korea

Date of Birth: Sep 09, 1999

Height: 1.64 m (5'5")

Weight: 47 kg (103 lbs)

Blood Type: O

Moon Sua is the oldest member of Billlie. She is the main rapper and lead vocalist of the group. She is the younger sister of Moonbin from Astro. She is one of the tallest members of the group with a height of 164 cm (5'5''). In 2015, Sua participated on the reality survival show Unpretty Rapstar 2. She made it as the third runner up. Moon Sua left YG Entertainment after almost 10 years with the company in 2019 and then joined Mystic Story.



Stage Name: Suhyeon

Full Name: Kim Su Hyeon

Country of Birth: Korea

Date of Birth: Jan 15, 2000

Height: 1.63 m (5'4")

Weight: 45 kg (99 lbs)

Blood Type: O

Suhyeon is the main vocalist, lead dancer, and sub rapper of Billlie. She participated on the survival show Produce 101. She ranked 69. In 2017, Suhyeon became a contestant on a second survival show MixNine. She became one of the finalists but the girls’ group she was in was eliminated after the boys’ group won.



Stage Name: Haram

Full Name: Kim Ha Ram

Country of Birth: Korea

Date of Birth: Jan 13, 2001

Height: 1.63 m (5'4")

Weight: 45 kg (99 lbs)

Blood Type: O

Haram is the main vocalist and lead dancer of Billlie. She is the only 01 liner in Billlie. Haram is a fan of Taeyeon (SNSD) and Ariana Grande. Prior to joining Mystic Story, she was an SM Entertainment trainee. Her hobbies include watching soccer games. Her specialty is singing.



Stage Name: Tsuki

Full Name: Fukutomi Tsuki

Native Name: 福富月

Country of Birth: Japan

Date of Birth: Sep 21, 2002

Height: 1.65 m (5'5")

Weight: 51 kg (112 lbs)

Tsuki is the main dancer and sub vocalist of the group. She is one of the two Japanese members in Billlie. She is a fan of Twice, Shinee, and Blackpink. She is a former SM Entertainment trainee. Prior to her debut with Billlie, she also performed on stage as a backup dancer for EXILE. Her favorite colors are pink and red. Her favorite foods are braised short ribs and ramen noodles. Her hobbies include watching cartoons, drawing, painting, and playing games.



Stage NameSheon
Full NameKim Suyeon
Native Name김수연
Country of BirthSouth Korea
BirthdayJan 28, 2003
Height162 cm (5'4'')
Zodiac SignAquarius

Sheon, previously known by her real name Kim Suyeon, was the last member to join Billlie. In 2021, she became a contestant in Mnet's reality show Girls Planet 999 at the age of 18. She ranked 10th place. Her MBTI is ENFP. Her hobbies are watching zombie movies and browsing cat pictures. Her specialty is dance and makeup.



Stage Name: Siyoon

Full Name: Kim Si Yoon

Country of Birth: Korea

Date of Birth: Feb 16, 2005

Height: 1.71 m (5'7")

Siyoon is the second youngest member in the group. She is the main rapper and lead dancer of Billlie. She started as a child model. She was a model for a Pop Teen magazine in Korea prior to Billlie's debut. She passed the audition to join Mystic Story in April 2019 and joined the agency at the same time as Haram.



Stage Name: Haruna

Full Name: Osato Haruna

Native Name: 大里 春菜

Country of Birth: Japan

Date of Birth: Jan 30, 2006

Height: 162 cm (5'4'')

Haruna is the second Japanese member of Billlie. She is the youngest member of the group, debuting at the age of 15. Haruna is the lead dancer and sub vocalist of the group. She is from the Osaka Prefecture, Japan. She is the only member that was not announced publicly as a trainee. Her hobbies include watching movies. Her charming point is the mole under her eye.


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