CSR Members Profile (Updated!) - Kpop Profiles (2025)

CSR Members Profile and Facts:

CSR (첫사랑/Cheos-Sarang, formerly known as 05class) is a 7-member girl group under POPMUSIC and RBW Entertainment Japan. The girl group’s concept is a class of young girls who were born in 2005. The group consists of: Sua, Sihyeon, Yuna, Seoyeon, Duna, Geumhee, and Yeham. They debuted on July 27, 2022 with the mini album “Sequence: 7272“. They made their Japanese debut on July 3, 2024 with the mini album “L’heure Bleue“.

Group Name Explanation: Sua: “I think first love is a word that will be remembered for a long time. Which we want to be in people’s memories for a long time. Everyone has a lot of love at first sight. We therefore named it with the desire to become a memorable group for a long time.”

CSR Official Fandom Name: MAEUM (마음)
Fandom Name Explanation: The beginning of the first love (CSR) and the reason for their existence.
CSR Official Fandom Colors: N/A

CSR Official Logo:

CSR Official SNS:
Spotify: CSR
Apple Music: CSR
b.stage: 첫사랑 (CSR)
Instagram: @csr.offcl
X (Twitter): @CSR_offcl / (Japan): @CSRoffcl_J
TikTok: @csr.offcl
YouTube: 첫사랑(CSR)
Facebook: 첫사랑 CSR
Cafe Daum: csr.official

CSR Member Profiles:
Duna

Stage Name: Duna (두나)
BirthName: Kang Du Na (강두나)
Position: Leader
Birthday: April 28th, 2005
Zodiac Sign: Taurus
Height: 164 cm (5’4)
Weight: N/A
Blood Type: A
MBTI Type: INFP
Nationality: Korean

Duna Facts:
– Duna was born in Wonju, Gangwon, South Korea.
– Her strength is being good at challenges.
– She was revealed through the Christmas Makeup vlog.
– Duna says she’s the best at winking in CSR.
– Her favorite color is Blue.
– Her role model is Wonyoung from IVE.
– Duna says she’s #2 in CSR.
– She was a contestant on Chuang Asia Thailand, ranking #14 in the finals.
Show more Duna fun facts…

Geumhee

Stage Name: Geumhee (금희)
BirthName:HanGeum Hee (한금희)
Position: N/A
Birthday: March 4th, 2005
Zodiac Sign:Pisces
Height: N/A
Weight: N/A
Blood Type: B
MBTI Type: ISFP
Nationality: Korean

Geumhee Facts:
– Geumhee has a sleeping habit of sleepwalking.
– She likes Bae Yunjeong.
– Geumhee, Sua and Seoyeon studied at the same middle school.
– Her favorite color is light purple.
– If she could have a power she would choose teleportation.
– If she would have to choose between washing her face and washing her teeth, she’d choose not brushing her teeth.
– She was a contestant on Chuang Asia Thailand. She was eliminated in Episode 5 at Rank #59.
Show more Geumhee fun facts…

Sihyeon

Stage Name: Sihyeon (시현)
BirthName: Hwang Si Hyeon (황시현)
Position: N/A
Birthday: March 12th, 2005
Zodiac Sign:Pisces
Height: N/A
Weight: N/A
Blood Type:B
MBTI Type: ENTJ
Nationality: Korean

Sihyeon Facts:
– She was born in Ujeongbu, Gyeonggi-do, South Korea.
– She eats sprinkles before practice.
– Sihyeon prefers fried chicken (with sauce) over seasoned chicken.
– She has a sleeping habit of talking in her sleep.
Show more Sihyeon fun facts…

Seoyeon

Stage Name: Seoyeon (서연)
BirthName: An Seo Yeon (안서연)
Position: N/A
Birthday: March 26th, 2005
Zodiac Sign: Aries
Height: 161 cm (5’3)
Weight: N/A
Blood Type: O
MBTI Type: ENFP
Nationality: Korean

Seoyeon Facts:
– She is from Bucheon, Gyeonggi-do, South Korea.
– Seoyeon is a fan of former UNI.Tmember,NC.A.
– Fans say she looks like IVE‘s Gaeul.
– Geumhee, Sua and Seoyeon studied at the same middle school.
– Her favorite color is Pink.
– Her favorite subjects are Music and Athletics.
– She thinks Samsung is better in terms of function that iPhone.
– Seoyeon thinks Siri is really good at answering.
– She was a contestant on Chuang Asia Thailand. She was eliminated in Episode 5 at Rank #53.
Show more Seoyeon fun facts…

Yuna

Stage Name: Yuna (유나)
BirthName: Iimura Yuna (飯村 柚那)
Position: Main Dancer
Birthday:April 23rd, 2005
Zodiac Sign: Taurus
Height: N/A
Weight: N/A
Blood Type: A
MBTI Type: ENFP
Nationality: Japanese

Yuna Facts:
– She was born in Ibaraki, Japan.
– She likes eating makchang.
– Yuna rather phone over text.
– Her nicknames are Yunabi (Yuna+Butterfly), Poodle, Maknae, Little One, Iyuna.
– She was a member of the Japanese girl group Harajuku DREAMMATE.
– Yuna has two poodle puppies named Lala and Popo.
– She has two younger brothers.
– Her favorite colors are Yellow, Purple, and Emerald.
Show more Yuna fun facts…

Sua

Stage Name: Sua (수아)
BirthName: Yoo Su A (유수아)
Position: N/A
Birthday: July 23rd, 2005
Zodiac Sign: Leo
Height: N/A
Weight: N/A
Blood Type:B
MBTI Type: ESFP
Nationality: Korean
TikTok: @dancesua05

Sua Facts:
– She lives in Anyang, Gyeonggi-do, South Korea.
– Education: Anyang Art High School.
– Nicknames: Yoo Soonga and Yoo Swa.
– Geumhee, Sua and Seoyeon studied at the same middle school.
– She was part of her middle school’s dance club.
– Her favorite food is gopchang-jeongol.
– She listens to Sunmi.
– Both Sua and Seoyeon are playing a phone game named “Hamster Village”, but Seoyeon is better at it.
– Sua made her actress debut in the drama ‘Under The Gun’.
Show more Sua fun facts…

Yeham

Stage Name: Yeham (예함)
BirthName: Koo Ye Ham (구예함)
Position: Main Vocalist, Maknae
Birthday: October 7th, 2005
Zodiac Sign: Libra
Height: N/A
Weight: N/A
Blood Type:A
MBTI Type: INTJ
Nationality: Korean

Yeham Facts:
– She lives in Yeoksam-dong, Gangnam, Seoul.
– Her middle school was in Sejong City.
– She listens to Justin Bieber.
– Her hobby is singing.
– If she could have a power she would choose teleportation.
– Her nickname is Koo Jogi (Precious Koo Yeham).
– If she would have to choose between washing her face and washing her teeth, she’d choose not washing her face.
– She was a contestant on Chuang Asia Thailand. She was eliminated in Episode 5 at Rank #57.
Show more Yeham fun facts…

Made by: hein
(Special Thanks to: ST1CKYQUI3TT, Viien, Jelly, Jieun, Lia, and more for providing me with more info!)

Note 1: Please don’t copy-paste the content of this page to other sites on the web. If you need to use info from our profile, kindly put a link to this post. Thanks – KProfiles.com

Note 2: Sua was confirmed to be the leader in an old vlog and Yeham’s main vocalist position was confirmed while she was introducing herself in the debut showcase.

For Reference On MBTI Types:
E = Extroverted, I = Introverted
N = Intuitive, S = Observant
T = Thinking, F = Feeling
P = Perceiving, J = Judging

Related: CSR Discography

Latest Korean Comeback:

Japanese Debut:

Do you like CSR? Do you know more facts about them? Feel free to comment down below.