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RBW-I (RBW Ent trainees) Profile

RBW-I Profile (RBW Entertainment’s trainee program)

is RBW Entertainment’s trainee program. Their first batch of trainees will debut as ONEUS and ONEWE in 2018. The second batch, of female trainees, run a channel called 365 Practice on YouTube.

RBW-I Official Links:
Instagram: RBW_I
Twitter: RBW_I
YouTube: 365 Practice

Current Trainees:

Name: Park Jieun (박지은)
Position: Vocal
Birthday: September 4, 1997
Zodiac Sign: Virgo

Jieun Facts:
-She was on Produce 48 (ranked 80).
-She’s good at Japanese.
-Her nickname is Bambi because of her visuals.


Name: Jung Dohae (정도해)
Position: Vocal
Birthday: October 22, 1998
Zodiac Sign: Libra

Dohae Facts:
-She is slow at memorizing choreography.


Name: Na Goeun (나고은)
Position: Vocal
Birthday: September 3, 1999
Zodiac Sign: Virgo

Goeun Facts:
-She was on Produce 48 (ranked 29).
-She went to Hanlim Multi Arts and was in a class with Loona’s Chuu and Kim Lip.


Name: Jang Eunseong (장은성)
Position: Vocal, dance, rap
Birthday: February 11, 2000
Zodiac Sign: Aquarius

Eunseong Facts:
-She was on Mixnine (ranked 78).
-Her nickname is “cute blackbean” because she has dark skin.
-She is a current Hanlim Multi Arts student.


Name: Kim Youngseo (김영서)
Position: Vocal
Birthday: June 15, 2000
Zodiac Sign: Gemini

Youngseo Facts:
-She appeared on Mixnine (ranked 40).


Name: Seo Jiheun (서지흔)
Position: Rap
Birthday: December 10, 2002
Zodiac Sign: Sagittarius

Jiheun Facts:
-She appeared on Mixnine (ranked 90).


Stage Name: Yuki (유키)
Real Name: Mori Koyuki (もうりこゆき)
Age: 15

Yuki Facts:
-She is from Japan.
-She likes Michael Jackson.
-She enjoys going shopping by herself.
-She is a fan of Pentagon.


Name: Park Sujin (박수진)


Name: O Hanul (오하늘)

(there are no pictures of her released yet)
Name: Lee Eonjin (이언진)
Position: Vocal

Former Trainees

Name: Jo Yuri (조유리)

Yuri Facts:
-She appeared on Mixnine (ranked 85).


Name: Lee Ye Sol (이예솔)
Position: Vocal, Dance
Birthday: February 17, 1996
Zodiac Sign: Aquarius
Instagram: @soru_i_am

Yesol Facts:
-She can speak Korean, Chinese, Japanese, and English.
-She was on Mixnine (ranked #82).
-She was the oldest member.
-She loves to dance.
-She can speak fluent Chinese.
-She left 365 Practice and RBW in 2020.


Stage Name: Momo (모모)
Real Name: Ito Momoko
Position: Dance
Birthday: May 6, 1996
Zodiac Sign: Taurus

Momo Facts:
-She is from Tokyo.
-She competed in K-pop cover competitions in Japan.


Name: Kim Sungeun (김성은)
Position: Dance, vocal
Birthday: March 8, 1999
Zodiac Sign: Pisces

Sungeun Facts:
-She was on Mixnine (rank 58).
-She is the “baby face”.
-She used to run a YouTube channel.

Graduated Trainees
(some ONEUS members were not members of RBW-I)

Stage Name: Seoho (서호)
Real Name: Lee Gunmin (이건민)
Position: Vocal
Birthday: June 7, 1996
Zodiac Sign: Gemini


Stage Name: Keonhee
Real Name: Lee Keonhee
Position: Vocal
Birthday: June 27, 1998
Zodiac Sign: Cancer


Stage Name: Hwanung (환웅)
Real Name: Yeo Hwanung (여환웅)
Position: Dance
Birthday: August 26, 1998
Zodiac Sign: Virgo

Read more facts about Seoho, Keonhee, and Hwanung at the ONEUS profile!

ONEWE (formerly MAS0094 or MAS)

Stage Name: Yonghoon (용훈)
Real Name: Jin Yonghoon (진용훈)
Position: Vocal, guitar, keyboard
Birthday: August 17, 1994
Zodiac Sign: Leo


Stage Name: Harin (하린)
Real Name: Joo Harin (주하린)
Position: Drums
Birthday: March 29, 1998
Zodiac Sign: Aries


Stage Name: Kanghyun (강현)
Real Name: Kang Hyungu (강현구)
Position: Guitar
Birthday: November 24, 1998
Zodiac Sign: Sagittarius


Stage Name: Dongmyeong (동명)
Real Name: Son Dongmyeong (손동명)
Position: Vocal, keyboard
Birthday: January 10, 2000
Zodiac Sign: Capricorn


Stage Name: Cya (키야)
Real Name: Lee Kiwook (이기욱)
Position: Rapper, bass guitar
Birthday: January 24, 2000
Zodiac Sign: Aquarius

Read more facts about Yonghoon, Harin, Kanghyun, Dongmyeong, and Cya at the ONEWE profile!

profile made by skycloudsocean

(Special thanks to m i n e l l e, June)

Note: 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

Who is your RBW-I bias?

Who is you favorite RBW-I trainee? Do you know more facts about them? Feel free to comment below 🙂

About the author


  • fan_of_Wendy

    so many pretty girls among their trainees *__*

  • Sylvia Estero

    I’m excited because RBW from the groups I heard of (MAMAMOO,VROMANCE) they make sure that they can sing with power

  • m i n e l l e

    Na Goeun’s name in Korean is (나고은)

  • KProfiles

    Thank you for the help! 🙂

  • Lily Perez

    Na Goeun was eliminated from produce 48 and ranked 29th.

  • KProfiles

    Yes, the profile has been already updated by the author. Thanks for the comment! 🙂

  • Rahmita Razzak

    But why??? Her vocals…

  • seisgf

    Author here! If anyone has a photo of new 365 Practice member Eonjin, please let me know where I can find one! She was just introduced and I can’t find her on the other social media yet.

  • leBlancGanern

    theres this hoe name momo also
    i already dont like her :/

  • Nurul Zulaikha

    they have new trainee name Eonjin, but i’m not sure her surname

  • Kagura No.1 Enthusiast

    나고은 사랑해!!!
    Park Jieun and I have the same birthday (Sep.04)… but so close for my Goeunie (Sep.03)

  • caramel karma

    Na Goeun appeared on MIXNINE but didn’t past the audition and also appeared in ONEUS’s reality show “I Will Debut”

  • Ummm momo, yuri, and sungeon left rbw not sure about dohae though
    And it looks like the “set” (not sure yet either) debut team consists of yuki, goeun, yesol, eunsong, and jieun

  • qwertasdfgzxcvb


  • molly

    jiheun has the same birthday as me, just different years.

  • ka totoy

    When I first saw their YouTube channel, thought their group has many pretty girls to be only doing dance covers. I later came to know that they are actually trainees from RBW (Mamamoo’s agency) and will debut later.. ^_^ Fan of their channel..

  • ChuuPenguin
  • ChuuPenguin
  • ChuuPenguin

    Momo and Sungeun left rbw.. And Momo joined a group called A-Daily

  • Theres a new member! Her face hasnt been revealed tho

  • Youngseo has left rbw (?) she has a twt account

  • seisgf

    Thank you for all your information! I have updated who of the girls are still in RBW. It looks like Youngseo’s departure isn’t confirmed for now, so let me know if/when it is… -skycloudsocean

  • koko

    @ducung_ on Instagram, he passed the audition in Vietnam and in his story you could see the rbw practice room a few days ago. Don’t know if he’s official trainee.

  • Keriona Thomas

    Eunseong looks like Yeoreum of WJSN

  • pikachu sunbaenim

    I sense a future snsd aka national girl group from these girls… I wonder why?

  • Imma fans’ antis

    there are only 6 female trainee now: goeun, jieun, eunseong, yesol, yuki, and sujin
    and goeun participated in OCN TV series ‘Possessed’ OST part 5 titled ‘Fly’

  • Exessen

    Yuki was born in 2002 so no way she’s 15 at this point.
    That being said I don’t know when her birthday is.



  • azam

    I hope Jieun won’t be underrated after debuting. She got looks and vocal but K-netz are blind!