H1-KEY

H1-KEY (하이키) is a 4-member South Korean girl group under Choi Creative Lab. The group consists of: Seoi, Riina, Hwiseo, and Yel. They debuted on January 5, 2022, with their first single album, [ATHLETIC GIRL], under Grandline Group (GLG). Sitala left the group in May 2022, and Hwiseo was added to the group in June 2022. In July 2025, they left GLG Entertainment and are now under Choi Creative Lab.

H1-KEY members height, age

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

Member	Height	Age
Seoi	168 cm	26 years
Riina	172 cm	25 years
Hwiseo	169 cm	24 years
Yel	175 cm	21 years

Former members (1)

Member	Height	Age
Sitala	173 cm	30 years

Debut Date: January 5, 2022
Official Fandom Name: M1-KEY
Fandom Name Meaning: H1-KEY's fans are their keys that they will take with them wherever they go and go through everything together.
Cafe Daum: H1-KEY (하이키)

Official links

Group Stats

Average height: 171 cm
Tallest: 175 cm · Yel
Shortest: 168 cm · Seoi
Average age: 24 years
Oldest: 26 years · Seoi
Youngest: 21 years · Yel

Members

Seoi

Stage Name: Seoi (서이)
Birth Name: Lee Ye-jin (이예진)
Position(s): Leader, Vocalist
Birthday: February 12, 2000
Age: 26 years
Zodiac Sign: Aquarius
Chinese Zodiac Sign: Dragon
Height: 168 cm (5'6″)
Blood Type: B
MBTI Type: ESTJ (Her previous result was ESFJ)
Nationality: Korean
Representative Animal: Arctic Fox

Facts

She was the second member revealed.
She was born in Seongnam, Gyeonggi Province, South Korea.
Her family includes her parents and a younger brother born in 2010.
Seoi is a former YG Entertainment trainee, part of YG Trainee Team 2.
She is close to PURPLE KISS’s Chaein and Billlie’s Moon Sua, having trained together at YG.
Her role models are Son Yejin, HyunA, and Little Mix.
Her hobbies are baking and collecting pretty things.
Her charm points are her appearance and her contrasting personality.
Her nicknames are Iris and Cotton Candy.
She trained for three years.
She hopes to try acting one day.
She was inspired to become an idol after watching SNSD perform “Gee” with her mom, seeing their happiness on stage.
Her motto is: “Seeing the bright side will brighten up my life.”

Riina

Stage Name: Riina (리이나)
Birth Name: Lee Seung-hyun (이승현 / イ・スンヒョン)
Position: Vocalist
Birthday: February 21, 2001
Age: 25 years
Zodiac Sign: Pisces
Chinese Zodiac Sign: Snake
Height: 172 cm (5'7.5″)
Weight: 49 kg (108 lbs)
Blood Type: B
MBTI Type: ESTJ-A
Nationality: Korean
Representative Animal: Kangaroo

Facts

She was the third member revealed.
She was born in Seoul, South Korea.
Her family includes her parents and a younger sister born in 2002.
She has a dog named Kongyi.
She competed in Produce 48, ranking #73.
She is a former WM Entertainment trainee.
She trained for two years and five months before Produce 48.
She was a member of the pre-debut group Ggumnamu.
She studied at Sanghyun Middle School and SOPA.
She was classmates with DreamNote’s Sumin, Rocket Punch’s Suyun, ALICE’s Karin, and Kim Minju.
She is close to Lee Chaeyeon and Queenz Eye’s Wonchae.
She can speak Japanese.
Her charm point is her droopy eyes when she smiles.
Her nicknames are Sseum, Danhobag (sweet pumpkin), and Alpaca.
Her role model is IU.
She trained for six years.
Her hobbies are watching movies and taking walks.
If she could have a superpower, it would be endless energy.
She competed in Queendom Puzzle but was eliminated in episode 9.
Her motto is: “You have no regrets when you work hard.”

Hwiseo

Stage Name: Hwiseo (휘서)
Birth Name: Jo Hwi-hyeon (조휘현)
Position(s): Main Vocalist, Rapper
Birthday: July 31, 2002
Age: 24 years
Zodiac Sign: Leo
Chinese Zodiac Sign: Horse
Height: 169 cm (5'6.5″)
Blood Type: A
MBTI Type: INFJ (Her previous result was ISFJ)
Nationality: Korean

Facts

She was announced as a new member in June 2022.
She was born in Seoul, South Korea.
Her family includes her parents, an older sister, and a younger brother.
She trained at The Black Label and Source Music.
She attended Hanlim Multi Arts School (Practical Dance Department), graduating in 2021.
Her role model is Jeon Soyeon of (G)I-DLE.
She trained for 9.5 years.
She has a driver’s license.
Her favorite colors are red, black, and hot pink.
She enjoys spicy food, pizza, hamburgers, and fruit.
Her charm points are her eyes and her “reverse beauty” - a bright smile contrasting her expressionless look.
Her dream is to be an all-rounder: writing lyrics, composing, producing, and resonating with the public.
She is close to LE SSERAFIM’s Huh Yunjin and KISS OF LIFE’s Julie.
She ranked #1 in Queendom Puzzle and debuted in EL7Z UP.
Her motto is: “Just do what you’ve worked hard for. We can all do well together.”

Yel

Stage Name: Yel (옐)
Birth Name: Han Shin-young (한신영)
Position(s): Main Dancer, Vocalist, Rapper, Maknae
Birthday: December 25, 2004
Age: 21 years
Zodiac Sign: Capricorn
Chinese Zodiac Sign: Monkey
Height: 175 cm (5'9″)
Blood Type: A
MBTI Type: ISTJ (Her previous result was ESFJ)
Nationality: Korean
Representative Animal: Red Panda

Facts

She was the first member revealed.
Yel was born in Jinhae-gu, Changwon, South Gyeongsang Province, South Korea.
Her family includes her parents and a younger brother born in 2007.
She has a dog named Hodu.
She attended S.D.K Academy.
In 2019, she placed first in JYP’s 15th Open Audition.
She is a former JYP trainee.
She is close to Billlie’s Tsuki.
She passed the final audition and joined Grandline (GLG) in May 2021.
Her role model is Lee Hyori.
As a child, she wanted to be a choreographer.
Her charm point is her strong stage presence despite being the youngest.
Her nicknames are Shinchan and Snowball.
She trained for three years.
If she had a superpower, it would be the ability to multitask while sleeping.
If stranded on an island, she would bring bug repellent.
Her proudest moment was filming a choreography video she created herself.
She hopes to become someone who dominates the stage.
Her motto is: “Let’s live a life I can be satisfied with every day.”

Former member

Sitala

Stage Name: Sitala (시탈라)
Birth Name: Sitala Wongkrachang (ศีตลา วงศ์กระจ่าง)
Position(s): Vocalist, Rapper
Birthday: April 23, 1996
Zodiac Sign: Taurus
Chinese Zodiac Sign: Rat
Height: 173 cm (5'8″)
MBTI Type: INTP
Nationality: Thai

Facts

She was the fourth member revealed.
She was born in Thailand.
She studied at Ewha Women’s University.
Her family includes her parents and a twin sister.
Her father was Thai actor Sarunyu Wongkrachang, and her mother Hatthaya Wongkrachang is a DJ.
Her uncle is singer Thaneth Warakulnukroh.
She was a trainee at Lionheart Entertainment.
She joined Lionheart in March 2018, starting training in October after a term break.
She is friends with (G)I-DLE’s Minnie.
Her charm points are her bright personality and lovely smile.
Her nicknames are Satala and Mentala.
Her representative animals are the quokka and piglet.
Her hobbies are watching movies and listening to music.
If she had a superpower, it would be stopping time.
She is the youngest Chanel model from Thailand.
She moved to Korea in 2016.
She likes the Korean training system for its structured schedule.
She relaxes by listening to music and writing in her diary.
Her favorite model is Irene Kim.
Her favorite Korean actresses are Jun Ji-hyun and Gong Hyo-jin.
Her favorite places in Seoul are Hannam-dong (Itaewon) cafés and nearby Hapjeong.
Her favorite drink is iced americano.
She left the group on May 25, 2022, for personal reasons.
Her motto is: “Everything is possible for you: Work hard, stay humble, be kind.”