D-ONE Members Profile and Facts
D-ONE (디원) is a 6-member South Korean boy group under Mainbase Entertainment. The group consists of Jaehoon, Hyunwoong, Ihwa, Sejin, Han and Jooyoung. Doyul left the group on August 29, 2023. They started group activities in Japan in November 2022. They debuted on November 26, 2022, with their first single, Torch.
Group Name Meaning: D-1 signifies the day before a special occasion. It is a day filled with anticipation and excitement for what lies ahead. D-ONE aims to be a constant source of such anticipation and excitement.
Official Greeting: “Hello. We are D-ONE!”
D-ONE Official Fandom Name: Diary
Fandom Name Meaning: N/A
D-ONE Official Color: N/A
D-ONE Official Logo:
Official SNS:
Instagram: @done_officialjp
X: @DONE_OFFICIALJP
TikTok: @d_one.official
YouTube: D-ONE OFFICIAL
D-ONE Member Profiles:
Jaehoon
Stage Name: Jaehoon (재훈)
Birth Name: N/A
Position(s): Leader, Main Vocalist, Main Dancer
Birthday: January 2, 1997
Zodiac Sign: Capricorn
Chinese Zodiac Sign: Rat
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Korean
Instagram: @j_hoon0102
Jaehoon Facts:
– N/A
Ihwa
Stage Name: Ihwa (이화)
Birth Name: N/A
Position(s): Main Vocalist, Main Dancer
Birthday: December 6, 1996
Zodiac Sign: Sagittarius
Chinese Zodiac Sign: Rat
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Korean
Instagram: @hi_ihwa
TikTok: @hi_ihwa
Ihwa Facts:
– N/A
Hyunwoong
Stage Name: Hyunwoong (현웅)
Birth Name: Kim Hyun Woong (김현웅)
Position(s): Main Rapper
Birthday: February 8, 1998
Zodiac Sign: Aquarius
Chinese Zodiac Sign: Tiger
Height: 182 cm (6’0”)
Weight: 63 kg (139 lbs)
Blood Type: O
MBTI Type: N/A
Nationality: Korean
Instagram: @____khw____
Hyunwoong Facts:
– Hyunwoong is a former member of 14U (and its sub-unit Lucky) (2017-2019) and 2Z (2019-2020).
– His hobbies include exercising, playing basketball and writing lyrics.
– He has writing credits on 14U‘s “Don’t Be Pretty” and 2Z‘s “1822”, “Roulette”, “My 1st Hero”, “Keep The Promise” and “25”.
– His specialties are dancing, rapping and acting.
– His role models are his parents and ZICO.
– Hyunwoong loves free things.
– His favorite season is autumn.
Han
Stage Name: Han (한)
Birth Name: N/A
Position(s): Vocalist
Birthday: September 30, 1998
Zodiac Sign: Libra
Chinese Zodiac Sign:
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Korean
Instagram: @ha._.ney
Han Facts:
– N/A
Sejin
Stage Name: Sejin (세진)
Birth Name: Lee Se Jin (이세진)
Position(s): Sub Vocalist, Dancer
Birthday: July 22, 1999
Zodiac Sign: Cancer
Chinese Zodiac Sign: Rabbit
Height: 175 cm (5’9″)
Weight: 53 kg (117 lbs)
Blood Type: O
MBTI Type: N/A
Nationality: Korean
Instagram: @ss._.sejin
TikTok: @sejin_official
Sejin facts:
– He is former member of 14U (2017-2019).
– Sejin is also a former member of pre-debut groups UTH (2019-2020), C on H (2020) and FLORET (2020-2021), as well as YOURS project (2020).
– He previously ran a YouTube channel with fellow former UTH and YOURS (and currently NINE.i) member Vahn, where they would post music-related content.
– He was introduced as a new member on November 27, 2023.
– Sejin’s role models are NCT, Yoon Jungshin and G-DRAGON.
– His charming point is his reverse charm.
– Sejin’s specialties are playing soccer and creating a chilly (awkward) atmosphere.
– His nickname is “Haribo” because of his love of jellies.
– He enlisted in the military on October 14, 2021.
– Sejin has two dogs named Sarang and Somang.
– He enjoys playing League of Legends.
– He relieves stress by listening to music.
– His hobby is cracking dad jokes.
– Sejin’s favorite color is white.
– His favorite number is 0.
Jooyoung
Stage Name: Jooyoung (주영)
Birth Name: Choi Joo Young (최주영)
Position(s): Maknae
Birthday: January 7, 2002
Zodiac Sign: Capricorn
Chinese Zodiac Sign: Snake
Height: 180 cm (5’11”)
Weight: 65 kg (143 lbs)
Blood Type: B
MBTI Type: ENFP
Nationality: Korean
Instagram: @joo__zer0
Jooyoung Facts:
– Education: Kookje University (K-POP Major)
– He was born in Iksan, Jeollabuk-do, South Korea.
– Jooyoung is a former member of IB147 (2023-2024).
– He has a sister.
– His favorite colors are pink, blue, black, and white.
– He was introduced as a new member on February 17, 2025.
– His specialties are playing instruments, badminton and acting.
– Jooyoung’s favorite song is “The Real” by ATEEZ.
– His charming point is that contrary to having a cold appearance, he has a lively and bright personality.
– He is a Christian.
Former Member(s):
Doyul
Stage Name: Doyul (도율)
Birth Name: Kim Do Yul (김도율)
Position(s): Main Rapper
Birthday: April 7, 1997
Zodiac Sign: Aries
Chinese Zodiac Sign: Ox
Height: 179 cm (5’10”)
Weight: 63 kg (139 lbs)
Blood Type: A
MBTI Type: N/A
Nationality: Korean
Instagram: @doyulitos
Doyul Facts:
– He made his solo debut with the single “Rainy Day” on February 8, 2025.
– Doyul is a former member of 14U (2017-2019) and its sub-unit Xplosive.
– He auditioned for the JTBC survival show PROJECT 7 (2023) but was unable to pass the survival round.
– His hobbies include rapping and writing song lyrics.
– His role models are Hwang Gyeongmin, Lee Minho, GIRIBOY and his parents.
– Doyul’s specialty is acting.
– His favorite color is pink.
– He is currently signed with MOREDAY for his solo activities.
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(Completed by: midgehitsthrice)
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Latest Release:
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