OUIBOYS Members Profile and Facts
OUIBOYS (위보이즈/ Temporary Name) is an 8-member South Korean pre-debut boy group under OUI Entertainment. The group consists of Kim Sihwan, Eito, Oh Jungjae, Lee Seungwoo, Jo Minseo, Masayoshi, Anji, and Cheon Seungjun. Their debut date is currently unknown.
Group Name Meaning: N/A
Official Greeting: N/A
OUIBOYS Official Fandom Name: N/A
Fandom Name Meaning: N/A
OUIBOYS Official Color: N/A
OUIBOYS Official Logo:
Official SNS:
Instagram: @oui_trainee
X: @oui_trainee
TikTok: @oui_traineeofficial
OUIBOYS Member Profiles:
Kim Sihwan
Stage Name: Kim Sihwan (김시환)
Birth Name: Kim Si Hwan (김시환)
Position(s): N/A
Birthday: 2008
Zodiac Sign: N/A
Chinese Zodiac Sign: N/A
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Korean
TikTok: @08_sihwan
Kim Sihwan Facts:
– Prior to becoming a trainee, he used to upload videos on TikTok, reaching around 270,000 followers and 7.7 million likes.
– His favorite food is tteokbokki.
Eito
Stage Name: Eito (에이토)
Birth Name: N/A
Position(s): N/A
Birthday: 2008
Zodiac Sign: N/A
Chinese Zodiac Sign: N/A
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Japanese
Eito Facts:
N/A
Oh Jungjae
Stage Name: Oh Jungjae (오정재)
Birth Name: Oh Jung Jae (오정재)
Position(s): N/A
Birthday: August 27, 2009
Zodiac Sign: Virgo
Chinese Zodiac Sign: Ox
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Korean
Oh Jungjae Facts:
– Education: Hanlim Multi Art School (Department of Applied Music).
– He and Kim Gyurae from Fantasy Boys are classmates.
Lee Seungwoo
Stage Name: Lee Seungwoo (이승우)
Birth Name: Lee Seung Woo (이승우)
Position(s): N/A
Birthday: November 17, 2009
Zodiac Sign: Scorpio
Chinese Zodiac Sign: Ox
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: ENFP
Nationality: Korean
Lee Seungwoo Facts:
– He is a former child actor.
– He appeared on the first episode of the show Wanna One Go: ZERO BASE as part of the “Little Wanna One” auditions.
– Education: Shinhwa Elementary School.
– Seungwoo began his acting career in 2013.
Jo Minseo
Stage Name: Jo Minseo (조민서)
Birth Name: Jo Minseo (조민서)
Position(s): 2009
Birthday: N/A
Zodiac Sign: N/A
Chinese Zodiac Sign: N/A
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: INTP
Nationality: Korean
Jo Minseo Facts:
– He’s a former member of 00d00m00y (2024) under the stage name M.
– He attended ModernK Music Academy.
– He can play the guitar.
– One dessert he really likes is sweet red bean cream bread.
– Fall is his favorite season.
– He is a former IST Entertainment trainee.
– He would like to dye his hair pink in the future.
– Cats are his favorite animals.
– His favorite member of THE BOYZ is Sunwoo.
– Minseo thinks cereal should be poured before milk.
– A song he recommends is ‘There’s Nothing Holdin’ Me Back’ by Shawn Mendes.
– His favorite songs is “The Lazy Song” by Bruno Mars.
– Blue is his favorite color.
– He likes to drink fresh fruit juice.
– His favorite foods is chicken ribs.
Masayoshi
Stage Name: Masayoshi (마사요시)
Birth Name: Akiyama Masayoshi (アキヤマ マサヨシ)
Position(s): N/A
Birthday: 2009
Zodiac Sign: N/A
Chinese Zodiac Sign: N/A
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: ENFP
Nationality: Japanese
Masayoshi Facts:
– His favorite food is dak-galbi.
– His specialty is dancing.
Anji
Stage Name: Anji (안지)
Birth Name: N/A
Position(s): N/A
Birthday: N/A
Zodiac Sign: N/A
Chinese Zodiac Sign: N/A
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Japanese
Anji Facts:
– He attended SS Vocal Academy.
Cheon Seungjun
Stage Name: Cheon Seungjun (천승준)
Birth Name: Cheon Seung Jun (천승준)
Position(s): N/A
Birthday: N/A
Zodiac Sign: N/A
Chinese Zodiac Sign: N/A
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Korean
Cheon Seungjun Facts:
– A song he recommends is ‘OVERDRIVE’ by WEi.
– He passed the audition for OUI Entertainment on April 4, 2024.
– He attended THE Dance Vocal Academy.
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: Jo Minseo’s MBTI type was confirmed during a Q&A he held as a member of 00d00m00y, while Lee Seungwoo’s and Masayoshi’s were confirmed by themselves during the group’s first public appearance on February 24, 2026 (Links: Lee Seungwoo, Masayoshi).
Made by: “felipe grin§”
(Special thanks to: doioae, jungjaeoh09, nzzmno, woxihuan2i, c09kie, nnoouuiinn)
Who is your OUIBOYS bias? Do you know more facts about them? Feel free to comment below. 
