Everything About RBW Entertainment’s Rookie Group ONEUS: Members, Full Profile, Debut, etc.

Oneus Valkyrie

ONEUS, Rookie Group from RBW Entertainment

Are you familiar with the girl group MAMAMOO? This time, RBW Entertainment decided to make a new group with entirely different characteristics from MAMAMOO, a boy group called ONEUS! According to the CEO of RBW Entertainment, ONEUS is a ‘classic idol group’ and has the characteristics of classic idol groups that are expected from the public. Even though they have different characteristics, each of its members is also talented just like their seniors. Are you curious about this freshly debuted boy group? Let’s take a look at ONEUS’ profile!

ONEUS Pre-debut

Before ONEUS made their debut, a few of its members had appeared in television programs, especially survival programs. Some of them had made their appearance in Mnet’s Produce 101, JTBC’s MIXNINE, and a project made by RBW Entertainment known as RBW Boys. Let’s take a look which members have participated in these programs!

Produce 101

Produce 101 Seoho

In the second season of Produce 101, there were three members of ONEUS who participated: Seo-ho, Geon-hee, and Hwan-woong. Unfortunately, the three of them couldn’t make it to the final stage of the program. Seo-ho was eliminated quite early as his final rank was 94th. Here is a video of RBW Entertainment trainees’ first performance on Produce 101:

Produce 101 Hwanwooong

Hwan-woong managed to last longer as he placed 42nd and had a chance to perform twice. He sang Shinee’s “Noona Is So Pretty” and performed Flo Rida’s ‘Right Round” for a dance position. Here is a video of his performance in Produce 101:

Produce 101 Lee Geonhee

Meanwhile, Geon-hee’s final rank was 33rd and he had three performances on Produce 101. He sang Shinee’s “Noona is So Pretty,” performed BoA’s “Amazing Kiss” for a vocal position, and performed “Oh Little Girl” for concept evaluation. You can see the videos of his performances in Produce 101 below:


Mixnine Ravn
Mixnine Lee Gunmin

There are two members of ONEUS who have participated in MIXNINE, Ravn and Seo-ho. After getting eliminated quite early in Produce 101, Seo-ho participated in MIXNINE and managed to place in a higher rank than the previous program. At that time, Seo-ho ranked 17th, while Ravn ranked 27th. You can find Seo-ho in a performance where the contestants sang TVXQ’s ‘Love In the Ice,” while Ravn in Gain’s “Paradise Lost”. You can see their performances on MIXNINE below:

RBW Boys


RBW Boys is a project made by RBW Entertainment in order to launch a new group. They had to go through a project titled RBW Trainee Real Life: We Will Debut. The project began with a monthly evaluation and later revealed each step of the debut process of a boy group including practice, training, and daily lives through Naver’s V Live and RBW Entertainment’s official Youtube account. Here are a few videos of RBW Boys:

ONEUS Members’ Profiles and Facts


Oneus Ravn

Full name: Kim Young-jo

Stage name: Ravn (read as Raven)

Date of Birth: September 2nd, 1995

Zodiac: Virgo

Height: 179 cm

Weight: 65 kg

Ravn is one of the members of ONEUS who appeared in MIXNINE as a contestant. At that time, he secured his position at rank 27. He used to work as a child model and a child actor even though he only starred as an extra. Before he joined RBW Entertainment, he used to be a trainee of JYP Entertainment, YG Entertainment, and Plan A Entertainment. He even ranked 2nd at JYP’s audition in 2016. He was also supposed to debut as a member of Victon, but eventually left the company.

His stage name is inspired by an X-Men hero who he likes, Mystique Raven. He has an older sister and he keeps a dog named Sunny. His hobby is doodling, and he can speak Japanese fluently. In the past, he appeared in MAMAMOO’s music video “Everyday” and JIN JU’s music video “GIẢ VỜ NÓI YÊU EM ĐI.” If you want to listen to his works, you can visit his SoundCloud account here!


Oneus Seoho

Full name: Lee Gun-min, but legally changed to Lee Seo-ho

Stage name: Seo-ho

Date of Birth: June 7th, 1996

Zodiac: Gemini

Height: 176 cm

Weight: 63 kg

Seo-ho is another member of ONEUS who has made an appearance on television. He has participated not only in one survival program, but two: Produce 101 and MIXNINE. In Produce 101, his final rank was 94, while in MIXNINE he managed to rank 17th. He was supposed to use his stage name Xion, but in the end, he decided to use Seo-ho as his stage name.

He has an older sister, and his hobbies are playing football and basketball. He also used to train in Hapkido. According to him, his attractive points are his sweet vocals and eye smile. Meanwhile, according to Leedo and Xion, he is very easy going and likes to joke around.


Oneus Leedo

Full name: Kim Geon-hak

Stage name: Leedo

Date of Birth: July 26th, 1997

Zodiac: Leo

Height: 178.5 cm

Weight: 67 kg

Before he joined RBW Entertainment, Leedo used to be a YG Entertainment’s trainee. He has a younger brother in his family. His specialties are rapping, singing, dancing, and working out. He is also good at speaking English. On the other hand, the thing he hates is vegetables. According to him, his attractive point is the difference between his voice when rapping and singing. Meanwhile, his fellow member Xion said that Leedo often gets shy and gets flustered a lot as well.


Oneus Keonhee

Full name: Lee Geon-hee

Stage name: Geon-hee

Date of Birth: June 27th, 1998

Zodiac: Cancer

Height: 181 cm

Weight: 63 kg

Geon-hee, just like Seo-ho, has made his appearance on television by participating in Produce 101 as a contestant. His final rank on the program was 33rd, but he was unable to proceed further. He is close with MXM’s Kim Dong-hyun, solo artist Kim Dong-han, YDPP’s Lee Gwang-hyun, and former FENT trainee Lee Jun-woo.

He has two younger sisters in his family. His hobby is looking at art, and he also likes to eat a lot. He is also talented as he can play the piano and is good in two other languages, English and Japanese. On the other side, he hates awkward atmosphere and cucumbers. According to him, his attractive point is his bright energy.


Oneus Hwangwoong

Full name: Yeo Hwan-woong

Stage name: Hwan-woong

Date of Birth: August 26th, 1998

Zodiac: Virgo

Height: 168 cm

Weight: 57 kg

If you watch Produce 101 Season 2, then you might be familiar with this face! Hwan-woong used to participate in Produce 101 and ranked 42nd. Unfortunately, he couldn’t proceed further. He started dreaming of becoming a singer after he watched Rain.

Hwan-woong is an only child in his family. His hobby is getting on swings, and he also likes to watch movies. He is also multi-talented as he can play guitar and he can dance, especially locking, waacking, and street dancing. On the other hand, he hates doing things with his hands and dieting. According to him, his attractive point is the difference between his image on usual occasions and on stage.


Oneus Xion

Full name: Son Dong-ju

Stage name: Xion

Date of Birth: January 10th, 2000

Zodiac: Capricorn

Height: 173 cm

Weight: 55 kg

Originally, he was supposed to use the stage name Leedo, but ended up using the stage name Xion. He has a twin brother in another rookie group under the same management, ONEWE, who’s named Dongmyeong. He is the younger twin brother by 1 minute. Along with his twin brother, he used to be an MC for V HEARTBEAT WEEKLY’s K-Pop Chart & News.

His hobby is watching musicals and he likes to eat a lot, but he hates working out. According to him, his attractive points are his cold appearance but actually has a bright and playful personality. He also has pretty eyes and long eyelashes, on which he actually can place a toothpick on top of.


If you want to listen to ONEUS’ songs, here is the complete discography of ONEUS!

Title Year Album
Extended plays
Light Us 2019
Valkyrie 2019 Light Us
Last Song (with ONEWE) 2018 We Will Debut

Social Media

Even though they only recently debuted, ONEUS already have their social media account so that their fans can follow their latest activities! Some of their social media accounts are Instagram and Twitter. Let’s take a look at their social media accounts!


ONEUS often updates their latest activities through their social media on Instagram. Recently, they shared a post where they congratulate everyone the Lunar New Year. Here are a few posts of it:



They also often posted many photos of them behind the stage. You can see a few of them here:




If you want to see more, you can visit ONEUS’ official Instagram account here!


The tweets on their official Twitter account are pretty much the same as their posts on the Instagram account. So, for those of you who don’t have or don’t want to use Instagram, you can follow ONEUS’ activity on Twitter!

If you want to see more of their tweets, you can follow ONEUS’ official Twitter account here!

Lately, ONEUS has been actively promoting their debut single “Valkyrie.” You can find their performances on various music programs, such as Music Bank, M Countdown, Music Core, Show Champion, and many others.

So, what do you think about ONEUS? Are you interested in them and want to be their fan? Don’t forget to share your opinion about ONEUS in the comment section below!