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 Sihwan, Eito, Jungjae, Seungwoo, Minseo, Masayoshi, Anji, and 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:
Sihwan

Stage Name: Sihwan (시환)
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

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:
– He was cast by Gori Agency.

Jungjae

Stage Name: Jungjae (정재)
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

Jungjae Facts:
– Education: Hanlim Multi Art School (Department of Applied Music).
– He and Kim Gyurae from Fantasy Boys are classmates.

Seungwoo

Stage Name: Seungwoo (승우)
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

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.

Minseo

Stage Name: Minseo (민서)
Birth Name: Jo Min Seo (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

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.

Seungjun

Stage Name: Seungjun (승준)
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

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.