NXMERCY Members Profile and Facts
NXMERCY (노머시) is a 4-member South Korean boy group under Lowkeyhouse Entertainment. The group consists of Siu, Hawoon, Youn, and Woojoo. They officially debuted on March 16, 2026 with their first album BURN THE BLUE.
Group Name Meaning: No Mercy.
Official Greeting: N/A
NXMERCY Official Fandom Name: N/A
Fandom Name Meaning: N/A
NXMERCY Official Color: N/A
NXMERCY Official Logo:
Official SNS:
Instagram: @nxmercy_official
TikTok: @nxmercy_official
NXMERCY Member Profiles:
Siu
Stage Name: Siu (시우)
Birth Name: Hwang In Seok (황인석)
Position(s): Leader, Main Dancer, Lead Vocalist, Act
Birthday: May 19, 1995
Zodiac Sign: Taurus
Chinese Zodiac Sign: Pig
Height: 175 cm (5’8″)
Weight: 63 kg (138 lbs)
Blood Type: A
MBTI Type: ESFP
Nationality: Korean
Representative Color: White
Instagram: @siu0519
X: @siu0519
Facebook: @siu0519
TikTok: @siu0519
YouTube: @Siu0519
Siu Facts:
– He was born in Gwangju, South Korea.
– He is a former member of DUSTIN (2019-2025), SAVE (2018), and Challenger (2017-2018).
– He used to be under Na Entertainment (2019-2025) and ShowBox Entertainment (2017-2018/ Japan).
– His nicknames are Tteokbo Siu, Sugar Siu, and Child Siu.
– Siu and Hawoon were the first confirmed members of the group.
– His favorite animals are dogs.
– Siu’s favorite color is white.
– He is a fan ofthe animes Hunter x Hunter and Doraemon.
– Siu’s hobbies are shopping, composing, going to cafes, playing games, video editing, sleeping, dancing, and choreographing.
– His family consists of his parents and an older brother.
– He has two pet dogs named Bangja and Hyangdan .
– He can speak Japanese.
– He has experience in choreography and songwriting, having choreographed his former group DUSTIN’s songs “Crazy” and “Blacklist”, and participated in writing the lyrics for both songs as well as “NEW LOVE”.
– He officially released his first solo song, “이게아닌데 (This Isn’t It)”, on May 11, 2020.
– He was active as a professional b-boy for a long time.
See more facts about Siu…
Hawoon
Stage Name: Hawoon (하운)
Birth Name: Choi Ji Ho (최지호)
Position(s): Main Vocalist, Composing
Birthday: August 22, 1993
Zodiac Sign: Leo
Chinese Zodiac Sign: Rooster
Height: 175 cm (5’9″)
Weight: 58 kg (127 lbs)
Blood Type: B
MBTI Type: ISTJ
Nationality: Korean
Representative Color: Yellow
Instagram: @hawoonsgram
TikTok: @hawoonee
Hawoon Facts:
– He was born in Seoul, South Korea.
– He is a former member of D.I.P (2016), NewTownBoyz (2017), Challenger (2018), and MUSTB (2019).
– He also used to go by the stage names Jeeho (지호) and Ohi (오히) in his former groups.
– He used to be under MustM Entertainment (2019), ShowBox Entertainment (2018), First Step Company (2017), and Inter B.D Entertainment (2016).
– His hobby is shopping.
– He can do voice impressions of cartoon characters such as Mr. Krabs from SpongeBob SquarePants and Doraemon from Doraemon.
– He is known for being sociable and saying whatever is on his mind.
– He can play the piano and guitar.
– One of his charming points is his distinct voice.
– He studied at Baekje University of Arts and graduated with an associate degree.
– He has two pet cats named Alpha and Yuwol.
– His favorite sport is tennis.
– His personal motto is “Let’s do more tomorrow than today”.
– He has several celebrity friends, including Jinny (Bigflo, UNB, A.Cian), Jin Seungwook (TEN-X, VARSITY, N.TIC), soloist Kim Juna, and more.
– He is good at drawing.
Youn
Stage Name: Youn (윤)
Birth Name: Lee Yoon (이윤)
Position(s): Rapper
Birthday: December 3, 1994
Zodiac Sign: Sagittarius
Chinese Zodiac Sign: Dog
Height: 180 cm (5’11”)
Weight: 57 kg (125 lbs)
Blood Type: N/A
MBTI Type: INFP
Nationality: Korean
Representative Color: Blue
Instagram: @94.12.0x
TikTok: @lee_uni
Youn Facts:
– He is a former member of Challenger (2018-2019) and M.Crown (2015-2016).
– His hobbies are dancing, going to the cinema, and watching dramas.
– His specialty is playing the drums.
– His personal motto is “Living as a good person”.
– He has two pet dogs.
– He also used to go by the stage name Laon/Raon (라온) in his former groups.
– He was confirmed as a member on March 6, 2026.
– He used to be uder StarPro Entertainment (2015-2016) and ShowBox Entertainment (2018-2019/ Japan).
– He is friends with Wonjoo (Heart.V, The Fifth Season, VL, Midnight, Sesang, Payday) and ANTARES‘ Zino.
– He is passionate about music and dancing.
Woojoo
Stage Name: Woojoo (우주)
Birth Name: Yeo Seung Yeop (여승엽)
Position(s): Lead Dancer, Sub-Vocalist, Rapper, Maknae
Birthday: September 13, 1995
Zodiac Sign: Virgo
Chinese Zodiac Sign: Pig
Height: 177 cm (5’10”)
Weight: 60kg (132 lbs)
Blood Type: O
MBTI Type: ESFJ
Nationality: Korean
Representative Color: Purple
Instagram: @woojoo_com
TikTok: @sywi_77_xx
Woojoo Facts:
– He was born in Seoul, South Korea.
– He often shares covers and hosts livestreams on TikTok.
– He can speak Japanese.
– He loves cats.
– He was confirmed as a member on March 6, 2026.
– He also goes by the stage name Nyang for his content on TikTok.
– He is a fan of BTS.
– Woojoo’s hobbies include shopping, exercise, and listening to music.
– He is a former member of ANTARES (2022-2025), ZPZG (2019-2022) as Hwi (휘), and SAVE (2018) as Nine (나인).
– His personal fandom name is NyangNyangz.
– Woojoo’s favorite color is Blue.
He used to be under J-Star Entertainment (2019-2025).
– Woojoo’s favorite foods are sushi, pasta, and sashimi.
Note1 : 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: Their positions and MBTI types were confirmed via the group’s Instagram account.
Links: Siu, Hawoon, Youn, Woojoo.
For reference on MBTI types:
E = Extroverted, I = Introverted
N = Intuitive, S = Observant
T = Thinking, F = Feeling
P = Perceiving, J = Judging
Made by: “felipe grin§”
(Special thanks to: noa (forkimbit), out8luck, Lapa Loma)
Latest Official Release:
Who is your NXMERCY bias? Do you know more facts about them? Feel free to comment below. 
