C9ROOKIES Members Profile and Facts
C9ROOKIES (씨나인루키즈; Temporary Name) is a 7-member South Korean pre-debut boy group under C9 Entertainment. The group consists of Kaisei, Younki, Ato, Turn, Yuya, Kimkun, and Dohyeok. All members are scheduled to star as lead actors in a Japanese prime-time drama airing on the terrestrial channel TBS in 2026, and their debut is expected soon after.
Group Name Meaning: N/A
Official Greeting: N/A
C9ROOKIES Official Fandom Name: N/A
Fandom Name Meaning: N/A
C9ROOKIES Official Color: N/A
C9ROOKIES Official Logo:
Official SNS:
Instagram: @c9rookies_official
Threads: @c9rookies_official
X: @C9ROOKIES_Offcl
Facebook: @C9ROOKIES.official
TikTok: @c9rookies_official
YouTube: @c9rookies_official
C9ROOKIES Member Profiles:
Kaisei
Stage Name: Kaisei (카이세이)
Birth Name: N/A
Position(s): N/A
Birthday: March 30, 2004
Zodiac Sign: Aries
Chinese Zodiac Sign: Monkey
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Japanese
Kaisei Facts:
– He was revealed as the last member on June 25, 2025.
– He will make his acting debut sometime in 2026.
– He is the eldest member of the group.
Younki
Stage Name: Younki (윤기)
Birth Name: N/A
Position(s): N/A
Birthday: May 5, 2005
Zodiac Sign: Taurus
Chinese Zodiac Sign: Rooster
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Korean
Younki Facts:
– He was revealed as the third member on June 21, 2025.
– He will make his acting debut sometime in 2026.
– He has experience as a trainee at two major entertainment companies.
– He is fluent in English.
– He has a bright and cheerful energy that captivates audiences.
Ato
Stage Name: Ato (아토)
Birth Name: Song Du Hyun (송두현)
Position(s): Vocalist
Birthday: August 22, 2005
Zodiac Sign: Leo
Chinese Zodiac Sign: Rooster
Height: 174 cm (5’9″)
Weight: N/A
Blood Type: B
MBTI Type: INTJ
Nationality: Korean
Ato Facts:
– He is from Gyeryong, Chungcheongnam-do, South Korea.
– He was revealed as the fifth member on June 23, 2025.
– He will make his acting debut sometime in 2026.
– Education: School of Performing Arts Seoul (Applied Music Department).
– He was a contestant in the survival show Fantasy Boys.
– He used to be under EDEN Entertainment (2021-2023).
– He trained for 1 year and 5 months before joining Fantasy Boys.
– He has a family consisting of his parents, one older brother, and a younger sister born in 2009.
– He was part of a children’s choir from a young age and was known for his vocal talent.
– He participated in many children’s singing contests and won multiple awards.
– He names TXT‘s Yeonjun as his role model.
– He is a former pre-debut member of Daily Note (now known as ALL(H)OURS).
– He likes the colors light green and mint.
– His motto is “Life is like mint chocolate: cool and sweet”.
– His nicknames include Dudu and Duramjwi (squirrel).
Turn
Stage Name: Turn (턴)
Birth Name: Piyachat Na Bangchang (ปิยชาติ ณ บางช้าง)
Position(s): Vocalist, Rapper, Dancer
Birthday: December 2, 2005
Zodiac Sign: Sagittarius
Chinese Zodiac Sign: Rooster
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Thai
Turn Facts:
– He was revealed as the fourth member on June 22, 2025.
– He will make his acting debut sometime in 2026.
– He was a student at Dandelion dance and vocal/rap studio.
– He used to go by the name Hunter when he was a student at Dandelion Studio.
– He is the son of Ch. Aon Na Bangchang, a legendary rock musician, and the younger brother of Hack from the band Clash.
– He used to be a TikToker under the account name “hunxismyname”.
– Education: Debsirin Nonthaburi School.
– He used to model for the clothing brand 22thoctober.
– He is friends with Mchoice Trainee‘s Ben.
Yuya
Stage Name: Yuya (유야)
Birth Name: N/A
Position(s): Dancer
Birthday: August 30, 2006
Zodiac Sign: Virgo
Chinese Zodiac Sign: Dog
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Japanese
Yuya Facts:
– He was revealed as the sixth member on June 24, 2025.
– He will make his acting debut sometime in 2026.
– He has won several dance competitions, including 1st place at the Dance Cup and Little King, and 2nd place at the Keio Grand Prix.
Kimkun
Stage Name: Kimkun (김건)
Birth Name: N/A
Position(s): Visual
Birthday: February 6, 2007
Zodiac Sign: Aquarius
Chinese Zodiac Sign: Dog
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Korean
Kimkun Facts:
– He was revealed as the second member on June 20, 2025.
– He will make his acting debut sometime in 2026.
– He previously trained under one of the major entertainment companies.
– He is known as the “positive and passionate boy.”
Dohyeok
Stage Name: Dohyeok (도혁)
Birth Name: N/A
Position(s): Visual, Maknae
Birthday: January 22, 2008
Zodiac Sign: Aquarius
Chinese Zodiac Sign: Pig
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Korean
Dohyeok Facts:
– He was revealed as the first member on June 19, 2025.
– He will make his acting debut sometime in 2026.
– He passed auditions for two of Korea’s “big four” entertainment companies.
Note 1: Please don’t copy-paste the content of this page to other sites/places on the web. Please do respect the time and effort the author put in compiling this profile. If you need/want to use info from our profile, please kindly put a link to this post. Thanks a lot! 
– Kprofiles.com
Note 2: C9ROOKIES’ official X account shared an article introducing Ato as a vocalist, Turn as an all-rounder with skills in vocals, dance and rap, and Dohyeok and Kimkun as the visual maknae line (Link). The group’s X account shared a second article where Yuya was introduced as the member in charge of dance (Link).
For reference on MBTI types:
E = Extroverted, I = Introverted
N = Intuitive, S = Observant
T = Thinking, F = Feeling
P = Perceiving, J = Judging
Made by: “felipe grin§”
(Special thanks to: laamoonhee)
Who is your C9ROOKIES bias? Do you know more facts about them? Feel free to comment below.
