Billlie

Billlie (빌리), formerly known as Mystic Rookies, is a 7-member girl group under Mystic Story Entertainment (a subsidiary label of SM Entertainment). The group consists of Moon Sua, Suhyeon, Haram, Tsuki, Sheon, Siyoon, and Haruna. They debuted on November 10, 2021, with their first mini album, the Billage of perception : chapter one. On May 17, 2023, the group made their Japanese debut. The members are all living on their own

Billlie members height, age

Click on a member's name to scroll to their profile

Member	Height	Age
Moon Sua	162.9 cm	27 years
Suhyeon	162 cm	26 years
Haram	167 cm	25 years
Tsuki	168 cm	24 years
Sheon	162 cm	23 years
Siyoon	173 cm	21 years
Haruna	166 cm	20 years

Debut Date: November 10, 2021
Official Greeting: "Hello. We are Billlie."
Official Fandom Name: Belllie've
Official Colors: Mystic Blue & Mystic Violet

Official links

Group Stats

Average height: 165.8 cm
Tallest: 173 cm · Siyoon
Shortest: 162 cm · Suhyeon
Average age: 23.7 years
Oldest: 27 years · Moon Sua
Youngest: 20 years · Haruna

Members

Moon Sua

Stage Name: Moon Sua (문수아)
Birth Name: Moon Sua (문수아)
Position(s): Main Rapper, Lead Vocalist
Birthday: September 9, 1999
Age: 27 years
Zodiac Sign: Virgo
Height: 162.9 cm (5'4″)
Weight: 45 kg (99 lbs)
Blood Type: B
MBTI Type: ISFP
Nationality: Korean
Representative Color: Purple
Representative Emoji: 🌝
Sub-Unit: Moon Sua X Siyoon

Facts

She was born in Cheongju, Chungbuk, South Korea.
Moon Sua is the younger sister of the late ASTRO member Moonbin.
She loves retro fashion and often wears clothes in that style.
She trained at YG Entertainment for 10 years before leaving in 2019. She was set to debut in Future 2NE1, but the debut was canceled.
She studied at Vocal Studio ONCE.
Her favorite color is purple.
Her role model is CL.
She said she would like to live like Suhyeon for a day to experience her schedules and plans.
On September 12, 2023, it was announced she would go on hiatus due to health concerns.
On April 12, 2024, her hiatus ended.
On April 7, 2025, she debuted as part of the duo Moon Sua X Siyoon.

Suhyeon

Stage Name: Suhyeon (수현)
Birth Name: Kim Su-hyeon (김수현)
Position(s): Main Vocalist, Lead Dancer
Birthday: January 15, 2000
Age: 26 years
Zodiac Sign: Capricorn
Height: 162 cm (5'4″)
Weight: 44 kg (97 lbs)
Blood Type: O
MBTI Type: INFJ (previously ESFJ, ENFP, INFP, ESFJ)
Nationality: Korean
Representative Color: Green
Representative Emoji: 🌸

Facts

She was born in Seoul, South Korea.
She has a brother.
Suhyeon has her own lip tint brand.
She is friends with APRIL’s Naeun.
Her favorite color is blue.
She participated in Produce 101 (ranked #69) and MIXNINE (made the girls’ final lineup, but the boys won).
Her hobby is making beads.
Her role model is IU.
Her charm is the contrast between her on-stage and off-stage presence.
She would like to live like Haram for a day because of her voice.
On June 15, 2023, she went on hiatus due to health issues and did not join the group’s comeback.
On April 12, 2024, her hiatus ended.

Haram

Stage Name: Haram (하람)
Birth Name: Kim Ha-ram (김하람)
Position: Main Vocalist
Birthday: January 13, 2001
Age: 25 years
Zodiac Sign: Capricorn
Height: 167 cm (5'5.5″)
Weight: 45 kg (99 lbs)
Blood Type: A
MBTI Type: INTP (previously ENFP)
Nationality: Korean
Representative Color: Pink
Representative Emoji: 🎀

Facts

She was born in Jeonju, North Jeolla Province, South Korea.
Haram appeared on the Korean YouTube show JeAlalala.
She is a fan of SNSD, with Taeyeon as her favorite member.
She is also a fan of EXO.
Her favorite colors are blue and violet.
Haram studied piano for many years and majored in practical music.
Her charm point is her deep voice.
She would like to live like Tsuki for a day to experience life in the countryside.

Tsuki

Stage Name: Tsuki (츠키)
Birth Name: Fukutomi Tsuki (후쿠토미 츠키 / 福富月)
Position(s): Main Dancer, Sub-Vocalist
Birthday: September 21, 2002
Age: 24 years
Zodiac Sign: Virgo
Height: 168 cm (5'6″)
Weight: 53 kg (116 lbs)
Blood Type: O
MBTI Type: ENFP
Nationality: Japanese
Representative Color: Red
Representative Emoji: 🐰

Facts

Tsuki is from Yodogawa-ku, Osaka City, Osaka, Japan.
She was a former SM Entertainment trainee known as Ravi and is friends with aespa’s Ningning and former SMRookies Koeun.
She was a member of the J-pop girl group MAGICOUR.
Her fandom name is Tarutaru, and her logo is a moon.
Her favorite singers include BLACKPINK, TWICE, and Aimyon.
Her favorite colors are pink and red.
Her role models are BoA and Girls’ Generation.
She would like to live like Moon Sua for a day because she admires her rap skills.
In May 2025, Tsuki became the MC of Workdol season 4, replacing NMIXX’s Oh Haewon.

Sheon

Stage Name: Sheon (션)
Birth Name: Kim Su-yeon (김수연)
Position(s): Main Dancer, Lead Rapper
Birthday: January 28, 2003
Age: 23 years
Zodiac Sign: Aquarius
Height: 162 cm (5'4″)
Blood Type: AB
MBTI Type: INTP (previously ENFP)
Nationality: Korean
Representative Color: Orange
Representative Emoji: 🐱

Facts

She trained for about three years.
Sheon is a student at Hanlim Multi Art School.
She was revealed as a new member on November 19, 2021.
She was a beauty and eye makeup influencer before debut.
Sheon said her charm point is her sexy charisma.
Her fandom name is Suyangi.
She participated in Girls Planet 999, ranking tenth, just one spot away from the final lineup of Kep1er.
Her favorite colors are pink and red.
She loves cats, bubble tea, and video games.
Her hobbies include watching zombie movies and looking at cat pictures.
She can play piano and guitar, and her childhood dream was to be a guitarist.

Siyoon

Stage Name: Siyoon (시윤)
Birth Name: Kim Si-yoon (김시윤)
Position(s): Main Rapper, Lead Dancer
Birthday: February 16, 2005
Age: 21 years
Zodiac Sign: Aquarius
Height: 173 cm (5'8″)
Weight: 52 kg (114 Ibs)
Blood Type: B
MBTI Type: INFP
Nationality: Korean
Representative Color: Yellow
Representative Emoji: 🐣
Sub-Unit: Moon Sua X Siyoon

Facts

Siyoon was born in Geumcheon-gu, Seoul, South Korea.
Her fandom name is Unicity, and her logo is a chick hatching from an egg.
Her role in the team is calm, positive action.
Her favorite color is yellow.
Her hobbies include speaking Japanese with Haruna and writing in her diary.
Her role models are IU and BLACKPINK’s Lisa.
She would like to live like Haruna for a day because she is cute.
On April 7, 2025, she debuted as part of the duo Moon Sua X Siyoon.

Haruna

Stage Name: Haruna (하루나)
Birth Name: Osato Haruna (오오사토 하루나 / 大里春菜)
Position(s): Lead Vocalist, Lead Dancer, Maknae
Birthday: January 30, 2006
Age: 20 years
Zodiac Sign: Aquarius
Height: 166 cm (5'5.5″)
Weight: 43 kg (94 Ibs)
Blood Type: A
MBTI Type: ISTP (previously ESFP, ESTP)
Nationality: Japanese
Representative Color: Blue
Representative Emoji: 🐢

Facts

She was born in Kishiwada, Osaka, Japan.
Haruna joined Mystic Story Entertainment in 2021.
She trained at GPstudio Dance Academy.
Her hobby is watching movies.
Her special skill is playing.
Her role model is Seulgi from Red Velvet.
Her favorite color is red.
Her charm point is the mole under her eye.
On July 25, 2025, Mystic Story announced Haruna would take a hiatus to rest and recover after an intruder broke into her home.
On August 23, 2025, the company announced her hiatus had ended as her health improved.