OURBIRTHDAY Members Profile and Facts
OURBIRTHDAY (아워벌스데이) or OBD (오비디) is a seven-member girl group produced by INNIT Entertainment (subsidiary label of JYP Entertainment). The group consists of Cho Hyejin, Kuk Chorok, Shin Hyewon, U, Baby, Achiyara, and Kilala. On July 22, 2026, Chohyejin, Baby, and Achiyara debuted with the first version of the pre-debut track “HUNGRY (Side A)”, and Kuk Chorok, Shin Hyewon, U, and Kilala debuted with the second version of the same pre-debut track “HUNGRY (B-side)”. The full group is scheduled to officially debut on August 19, 2026.
OURBIRTHDAY Name Meaning: When the members are together, every day feels as happy and special as a birthday.
OURBIRTHDAY Official Greeting: N/A
OURBIRTHDAY Fandom Name: N/A
OURBIRTHDAY Official Color: N/A
OURBIRTHDAY Logo:
Official SNS:
Instagram: @ourbirthday_official
X: @OBD_offcl
TikTok: @ourbirthday_official
YouTube: OURBIRTHDAY
Facebook: OURBIRTHDAY
Fans: OURBIRTHDAY
OURBIRTHDAY Member Profiles:
Cho Hyejin
Stage Name: Cho Hyejin (조혜진)
Birth Name: Cho Hye-jin (조혜진)
Position(s): Leader
Birthday: October 24, 2007
Zodiac Sign: Scorpio
Chinese Zodiac Sign: Pig
Height: 170 cm (5’7″)
Weight: N/A
Blood Type: N/A
MBTI Type: ENFJ
Nationality: Korean
Representative Color: Mantis Green
Representative Emoticon: 🍃 (Matcha)
WHIP! Avatar: Groovlu (그루블루)
Cho Hyejin Facts:
– She was born in Seongha-dong, Sangju, Gyeongsangbuk-do, South Korea.
– Hyejin was a former member of the pre-debut girl group DDD25 along with U after ranking first in THE DDANDDARA. The group is presumed to have disbanded without debuting in late 2025, following a prolonged period of inactivity and the members’ subsequent debuts in different acts under the agency.
– She was a contestant on Street Dance Girls Fighter 2, and was eliminated in the fourth episode, placing sixth with her dance crew, LACHICA.
– She is a Hanlim Department of Practical Dance graduate.
– She dreamed of going to an arts high school after watching a drama called Dream when she was a kid.
– She likes to go to karaoke with friends.
– She has a dog.
– She thinks brown hair doesn’t suit her.
– She is a reflective person, thinking deeply about herself and how she is perceived by her friends.
– Her specialty is dancing.
– Her favorite jacket is a denim one, gifted and handed down by her mom who used to wear it when she was Hyejin’s age.
– She joined INNIT Entertainment on January 24, 2025.
– Hyejin was part of HUNGRY (SIDE A)’s single and promotions.
Kuk Chorok
Stage Name: Kuk Chorok (쿡초록)
Birth Name: Kuk Cho-rok (쿡초록)
Position(s): N/A
Birthday: July 28, 2005
Zodiac Sign: Leo
Chinese Zodiac Sign: Rooster
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Korean
Representative Color: Opium Brown
Representative Emoticon: 🍪 (Cookie)
WHIP! Avatar: Cappusia (카푸시아).
Chorok Facts:
– She was born in Gwacheon-si, Gyeonggi-do, South Korea.
– She is an ex PLEDIS trainee (2018-2025).
– She was one of the final candidates for the PLEDISNGG lineup.
– She trained alongside the New Jeans members during her trainee period.
– Her name means “Green” in Korean.
– Chorok was part of HUNGRY (SIDE B)’s single promotions.
Shin Hyewon
Stage Name: Shin Hyewon (신혜원)
Birth Name: Shin Hye-won (신혜원)
Position(s): N/A
Birthday: October 5, 2005
Zodiac Sign: Libra
Chinese Zodiac Sign: Rooster
Height: N/A
Weight: N/A
Blood Type: O
MBTI Type: ISFP
Nationality: Korean
Representative Color: Saffron Yellow
Representative Emoticon: 🧀 (Cheese)
WHIP! Avatar: Hapumi (하푸미).
Shin Hyewon Facts:
– She has a younger brother.
– She was a contestant in R U Next?, was eliminated in episode 7, placing 15th.
– Her hobbies are listening to music and dancing.
– She joined BE:LIFT in 2021, but left in 2024.
– Hyewon took dance classes at LAMF Dance Academy, PinkM Academy, and ARoot Academy.
– She has a habit of blinking a lot.
– She has a dog named Byeol (meaning “Star” in Korean).
– She is close to ILLIT‘s Minju.
– She was a member of Little Cheer Girl under the stage name Rael.
– She joined INNIT Entertainment sometime in 2026.
– Motto: “Do your best today and live your life to the fullest.”
– Hyewon was part of HUNGRY (SIDE B)’s single promotions.
Show more facts about Shin Hyewon…
U
Stage Name: U (유)
Birth Name: Kawasaki Yu (川崎優)
Position(s): N/A
Birthday: August 21, 2008
Zodiac Sign: Leo
Chinese Zodiac Sign: Rat
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: INFP
Nationality: Japanese
Representative Color: Carmine Brown
Representative Emoticon: 🍮 (Pudding)
WHIP! Avatar: Tirumico (티루미코).
U Facts:
– She was born in Chiba, Japan.
– She was a contestant on the survival show Universe Ticket. She was eliminated in episode 4.
– She was in the survival show THE DDANDDARA, ranking 3rd.
– She was part of the pre-debut group DDDA 25, along with Heejin, but the debut was cancelled.
– She enjoys dancing to various types of music and has fun with it.
– Her specialty is thinking of unique ideas that no one else has thought of.
– She expresses her creativity through custom t-shirts, making them when she can’t find the clothes she wants.
– Music is her lucky charm.
– U has a dog.
– She attended NEXTinDANCE Academy and SONA Dance School.
– She speaks Japanese, Korean, and English.
– U is friends with ERG‘s Ai.
– She is very expressive and tends to show her emotions more than others.
– She joined INNIT Entertainment on January 24, 2025.
– Her nickname is Yu-chan.
– U was part of HUNGRY (SIDE B)’s single promotions.
Baby
Stage Name: Baby (베이비)
Birth Name: Angela Baby Hsieh/Xie Jiaxuan (谢家轩)
Position(s): N/A
Birthday: February 10, 2009
Zodiac Sign: Aquarius
Chinese Zodiac Sign: Ox
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Taiwanese
Representative Color: Pink
Representative Emoticon: 🍒 (Cherry)
WHIP! Avatar: Cherysha (체리시아)
Baby Facts:
– She was born in Kaohsiung, Taiwan.
– Baby has an older sister.
– She was a child model.
– She was a trainee at Source Music and was part of their pre-debut group.
– Baby has been close friends with UNCHILD‘s Na Haeun since childhood.
– She is a former member of a cancelled U.SSO project.
– She also goes by Jia or Jiaqi.
– Her English stage name Angela Baby is an alias given by her mother. She named Baby after the Chinese actress Yang Ying who goes by the stage name Angelababy.
– Baby was part of HUNGRY (SIDE A)’s single and promotions.
Achiraya
Stage Name: Achiraya (아치라야)
Birth Name: August Achiraya (ออกัสต์ อชิรายา)
Position(s): N/A
Birthday: August 18, 2009
Zodiac Sign: Leo
Chinese Zodiac Sign: Ox
Height: 164 cm (5’5″)
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Thai
Representative Color: Medium Purple
Representative Emoticon: 🫐 (Blueberry)
WHIP! Avatar: I-Yat (아이얏)
Achiraya Facts:
– She was born in Thailand.
– She was a trainee at ABYSS Entertainment.
– Her nickname is Nong, which means “little sister.”
– She was a back dancer at the #BamBamAREA52inBKKDAY2 event in 2023.
– Her gaze tends to drop downward, whenever her confidence dips or not.
– Achiraya was part of HUNGRY (SIDE A)’s single and promotions.
Kilala
Stage Name: Kilala (키라라)
Birth Name: Takashima Kirara (高島きらら)
Position(s): Maknae
Birthday: December 17, 2010
Zodiac Sign: Sagittarius
Chinese Zodiac Sign: Tiger
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Japanese
Representative Color: Light Coral
Representative Emoticon: 🍓 (Strawberry)
WHIP! Avatar: Kirakle (키라클레)
Kilala Facts:
– She was born in Japan.
– Her nickname is Lala.
– She is an ex-trainee of JYP Entertainment.
– She is recognized for her dancing skills.
– She is close to the members of CIIU, a group that debuted under JYP China.
– She took 3rd place in the women’s in classical ballet at the Japan Ballet Competition 2021.
– Kilala was part of HUNGRY (SIDE B)’s promotions.
Note 1: Please don’t copy-paste the content of this page to other sites/places on the web. If you use info from our profile, please kindly put a link to this post. Thanks a lot! 
– Kprofiles.com
Note 2: Source for positions: Cho Hyejin’s leader position was confirmed on their Spotify note.
For reference on MBTI types:
E = Extroverted, I = Introverted
N = Intuitive, S = Observant
T = Thinking, F = Feeling
P = Perceiving, J = Judging
Made by: tylonger18 & 지씨
(Special thanks to: seulcity, ST1CKYQUI3TT, brightliliz, LIKEYLIKEY_ !!)
HUNGRY Perfomance (Side A):
HUNGRY Perfomance (Side B):
Who is your OURBIRTHDAY bias? Do you know more facts about them? Feel free to comment below. 🙂
