USPEER

USPEER (유스피어) is a six-member South Korean girl group under MW Entertainment. The lineup consists of Soee, Sian, Seoyu, Daon, Chaena, and Roa. They debuted on June 4, 2025, with the single album “SPEED ZONE.” Daon (Bottom Bunk) and Chaena (Top Bunk) Roa (Bottom Bunk; Bunk 1), Sian (Top Bunk; Bunk 1), and Soee (Bottom Bunk; Bunk 2) Seoyu (Bottom Bunk)

USPEER members height, age

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

Member	Height	Age
Sian	160 cm	19 years
Soee	166 cm	19 years
Seoyu	160 cm	18 years
Daon	164 cm	18 years
Chaena	162 cm	17 years
Roa	160 cm	17 years

Former members (1)

Member	Height	Age
Yeowon	168 cm	20 years

Debut Date: June 4, 2025
Group Name Meaning: The group name USPEER is a combination of two words: us and speer. The word "us" means "we", and the word "speer" means to ask.
Official Fandom Name: USTIE (유스티)
Fandom Name Meaning: The name is a combination of the group name USPEER and the word "bestie."
BiliBili: @USPEER_official
Mnet Plus: @USPEER
Xiaohongshu: @USPEER_official

Official links

Group Stats

Average height: 162 cm
Tallest: 166 cm · Soee
Shortest: 160 cm · Sian
Average age: 18 years
Oldest: 19 years · Sian
Youngest: 17 years · Chaena

Members

Sian

Stage Name: Sian (시안)
Birth Name: Lee Siyeon (이시연)
Position: Captain, Main Vocalist, Rapper, Dancer
Birthday: August 18, 2007
Age: 19 years
Zodiac Sign: Leo
Chinese Zodiac Sign: Pig
Height: 160 cm (5'3″)
Blood Type: A
MBTI Type: ESTJ
Nationality: Korean
Representative Emoji: 🐈‍⬛

Facts

Her interest in dance began when she started dance school in 4th grade.
Her stage name “Sian” comes from “S” in Siyeon and “ian,” sounding like “I am,” meaning she will show her true self.
She is in charge of cuteness in the group.
Sian describes herself as an all-rounder.
Her role models are OH MY GIRL for vocals and Taeyeon for vocal training inspiration.
She dislikes broccoli.
Her favorite number is 3.
Her charm point is versatility and being multi-talented.
Her favorite color is blue.
She listens to SZA.
She auditioned with dance and later learned singing as a trainee.
Her favorite season is winter.
She likes sweet and deep scents.
Her motto: “Let’s just live life as it flows.”

Soee

Stage Name: Soee (소이)
Birth Name: Kim Soyeon (김소연)
Position: Rapper
Birthday: March 11, 2007
Age: 19 years
Zodiac Sign: Pisces
Chinese Zodiac Sign: Pig
Height: 166 cm (5'5.5″)
Blood Type: A
MBTI Type: INFJ
Nationality: Korean
Representative Emoji: 🦊

Facts

Soee played volleyball in middle school and tennis in elementary school.
She has an older brother.
Her charm point is her unexpected charm.
Her favorite character is Shin-chan.
She can cook.
She has a pet rock named Ddudu, inspired by a character from Ratatouille.
She is in charge of sweetness in the group.
Her stage name means bright and joyful, aiming to uplift others.
She describes herself as a cat-like golden retriever.
Soee is a homebody.
Her favorite scent is woody and forest-like.
She likes melonpan.
Her mottos: “It doesn’t matter how slowly you go as long as you don’t stop” and “Every sincere heart creates change.”
She trained at Heartbeat Dance Academy.
She is currently into gaming.

Seoyu

Stage Name: Seoyu (서유)
Birth Name: Park Seonwu (박선우)
Position: Main Dancer
Birthday: November 26, 2007
Age: 18 years
Zodiac Sign: Sagittarius
Chinese Zodiac Sign: Pig
Height: 160 cm (5'3″)
Blood Type: AB
MBTI Type: ENTP
Nationality: Korean
Representative Emoji: 🐰(Pink Rabbit)

Facts

Her motto: “Emotions fade, but results remain.”
She can cook.
Seoyu trained at Joy Dance Plug-in Music Academy and RED STAGE; vocals at Oasis Vocal Music Academy.
Her role model is Red Velvet’s Seulgi for stage presence.
Her stage name combines “seo” (beginning) and “yu” (to flow), meaning a new path.
She was cast via her mother’s SNS in middle school.
Her favorite season is spring.
She trained the second longest.
Her charm points are lovability, seeming like a fool but not, and being like a virtual pet.
She likes mature scents like musk and floral.
She enjoys bread.

Daon

Stage Name: Daon (다온)
Birth Name: Kim Eunji (김은지)
Position: Vocalist
Birthday: July 7, 2008
Age: 18 years
Zodiac Sign: Cancer
Chinese Zodiac Sign: Rat
Height: 164 cm (5'4.5″)
Blood Type: B
MBTI Type: ENTJ
Nationality: Korean
Representative Emoji: 🍀

Facts

She was born in Suncheon, Jeollanam-do, South Korea.
Her charm point is her smile, which attracts fans instantly.
If not a singer, she would be a P.E. teacher.
Daon played tee-ball in elementary school.
Her special skill is making mosquito sounds.
She is in charge of smiles in the group.
She is the youngest in her family.
Her favorite color is mint.
She speaks English, Mandarin, and Korean.
She trained for 7 months.
Her favorite flowers are roses, freesia, and sunflowers.
She likes spicy and sweet foods.
She trained at Joy Dance Music Academy.
Her role model is IVE’s Jang Wonyoung.
She is a homebody.
She suggested hundreds of stage names starting with “Da”; the company chose Daon.
She was the last member to join USPEER.
Her motto: “Since it’s something I have to do anyway, let’s do our best!”

Chaena

Stage Name: Chaena (채나)
Birth Name: Han Chaehee (한채희)
Position: Vocalist
Birthday: June 8, 2009
Age: 17 years
Zodiac Sign: Gemini
Chinese Zodiac Sign: Ox
Height: 162 cm (5'4″)
Blood Type: A
MBTI Type: ESFP/ENFP
Nationality: Korean
Representative Emoji: 👽 / 🐹

Facts

Chaena was born in Suncheon, Jeollanam-do, South Korea.
She is in charge of humor in the group.
Her stage name means “a person full of colors and charms.”
She was inspired by idol anime like PriPara.
Her strength is her chameleon-like eyes, able to move each differently.
She trained for 1 year and 2 months.
She doesn’t drink coffee.
Her charm points include pretty eyes, resilient cheeks, friendliness, and humor.
She recommends Attack on Titan.
She finds the sea scary.
Her motto: “If you go a little crazy, the world is a fun place. 🤪 Hi~”
She enjoys zombie movies.

Roa

Stage Name: Roa (로아)
Birth Name: Kim Gayeon (김가연)
Position: Vocalist, Maknae
Birthday: October 28, 2009
Age: 17 years
Zodiac Sign: Scorpio
Chinese Zodiac Sign: Ox
Height: 160 cm (5'3″)
Blood Type: A
MBTI Type: ISFP
Nationality: Korean
Representative Emoji: 🐸

Facts

Her motto: “Flowers that bloom later than other flowers give off a deeper scent. ❀”
She trained at RED STAGE.
Roa is in charge of emotional vocals.
Her favorite foods are meat and silken tofu.
Her stage name “Roa” means “Raise of All,” given by Sian.
She laughs at even small things.
Her favorite color is light green; she also likes pink, purple, yellow, and burgundy.
Her favorite desserts are chocolate-based.
Her charm points are professionalism, being teasable, and warmth.

Former member

Yeowon

Stage Name: Yeowon (여원)
Birth Name: Kim Yeowon (김여원)
Position: Captain, Rapper
Birthday: April 10, 2006
Zodiac Sign: Aries
Chinese Zodiac Sign: Dog
Height: 168 cm (5'6″)
MBTI Type: ISTJ
Nationality: Korean
Representative Emoji: 🐯

Facts

Her role model is ITZY’s Yeji, whom she wants to be friends with.
Yeowon started taekwondo in 2017 and holds a 4th-degree black belt.
She studied at Hanlim Multi Art School.
Her favorite character is Odung from Kakao Friends.
She trained the longest–3 years and 11 months.
She was a backup dancer for B1A4.
She is a homebody.
She dislikes raw onions.
During elementary and middle school, she was a track athlete.
On Sep 8, 2025, it was announced she would go on hiatus due to health issues.
On May 6, 2026, MW Entertainment confirmed Yeowon’s departure after recovery and discussions about her future.