Ggumnamu (WM Boys) Trainee Profile and Facts
Ggumnamu (꿈나무), also known as Dream Tree or WM Boys, were a male trainee group under WM Entertainment. The lineup consisted of Lee Gyuhyung, Kang Wangseok, Kim Hyunbin, Won Youngwook, Son Gwanghun and Yun Siyun. All trainees left sometime in 2021-2022, marking the group’s disbandment.
(For the female Ggumnamu trainees click here.)
Group Name Meaning: Ggumnamu (꿈나무) translates to “Dream Tree”.
Official Greeting: N/A
Ggumnamu Fandom Name: N/A
Fandom Name Meaning: N/A
Ggumnamu Official Colors: N/A
Ggumnamu Official Logo: N/A
Official SNS:
Instagram: @wm_ggumnamu
Ggumnamu Member Profiles:
Lee Gyuhyung
Stage Name: Lee Gyuhyung (이규형)
Birth Name: Lee Gyu Hyung (이규형)
Position(s): N/A
Birthday: May 7, 1994
Zodiac Sign: Taurus
Chinese Zodiac Sign: Dog
Height: 182 cm (5’11)
Weight: 72 kg (158 lbs)
Blood Type: AB
MBTI Type: N/A
Nationality: Korean
Instagram: @9_d50
Lee Gyuhyung Facts:
– He left the group sometime in 2021.
– He is currently an actor under WM Entertainment.
– He starred in the dramas Alchemy of Souls, Some Air and The Police.
– Gyuhyung appeared on Produce X 101 (2019) as an independent trainee, but got eliminated in episode 5, placing 76th.
– He trained for 5 years and 6 months prior to Produce X 101.
– He got a C for his Produce X 101 audition, he later got re-evaluated to a D.
– Gyuhyung trained together with ONF.
– He enlisted as a public server worker, and got discharged around December 2018 – January 2019.
– He is the member who spent the longest amount of time under WM Entertainment.
– Gyuhyung is a commercial model.
– His hobbies are gaining, basketball, going shopping and watching movies.
– His special skills are speaking Japanese, popping and music and video editing.
Kang Wangseok
Stage Name: Kang Wangseok (강왕석)
Birth Name: Kang Wang Seok (강왕석)
Position(s): N/A
Birthday: October 4, 2001
Zodiac Sign: Libra
Chinese Zodiac Sign: Snake
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: ISTJ > ESTJ
Nationality: Korean
Instagram: @kingtachee
X: @PlanB_Han
TikTok: @wangkingman
Kang Wangseok Facts:
– He is from Hongje-dong, Seodaemun-gu, Seoul, South Korea.
– He was revealed on WM’s trainee Instagram account on November 2019, alongside Siyun.
– Wangseok left the group and company around May 2020.
– He’s a member of SWEET:CH (2025-present).
– He’s a former member of the Thai-Korean boy group PLAN B (2023-2025) under the stage name Han.
– Wangseok was previously a contestant on the survival show PROJECT 7 (2024).
– He is a former COD Entertainment and D&D E&S trainee.
– He is part of the dance crew LUCID.
– Wangseok was a backup dancer for ONF on Road to Kingdom, Stray Kids on Kingdom, The KingDom‘s “Black Crown” and “Ascension”, Primrose, and more.
– He is a choreographer, and has choreographed for Stray Kids at the KBS Song Festival and SBS Gayo Daejeon, ENHYPEN at the Japan MAMA Awards, NCT DREAM at the Seoul Music Awards, and more.
– He also works as a dance instructor and stage director, collaborating with groups like SF9 and various other events.
– Education: Seoul Hoseo Art Occupational Training College.
– He participated in the 2021 MBN Korea Overseas Koreans Song Festival.
– He used to take vocal classes at Highup Vocal Academy.
– His role model is NCT‘s Ten.
– His charming point is his subtle craziness.
– Wangseok’s specialties are creating choreographies, exercising, and speaking multiple languages (Korean, English, Japanese, and Thai).
– A menu he recommends is Yeoptteok (tteokbokki franchise) with honeycomb.
– The concepts he would like to try are hip-hop and sexy.
Kim Hyunbin
Stage Name: Kim Hyunbin (김현빈)
Birth Name: Kim Hyun Bin (김현빈)
Position(s): N/A
Birthday: August 31, 2002
Zodiac Sign: Virgo
Chinese Zodiac Sign: Horse
Height: 176 cm (5’9)
Weight: 66 kg (145 lbs)
Blood Type: B
MBTI Type: ENFJ
Nationality: Korean
YouTube: Billboard Man (inactive)
Kim Hyunbin Facts:
– He was announced as a member on June 4, 2020.
– He left the group and company on November 16, 2021.
– Hyunbin appeared on Produce X 101 (2019) as a Source Music trainee, but got eliminated in episode 11, placing 30th.
– He trained for 1 year and 7 months prior to Produce X 101.
– He left Source Music in January 2020 to focus on his college entrance exam.
– Hyunbin joined Cube Entertainment in 2022 and is currently a member of their boy group NOWADAYS (2024-present).
– He is a former KOZ Entertainment trainee.
– He was a backup dancer for ONF‘s “Sukhumvit Swimming” and “Beautiful Beautiful” and appeared in both music videos.
– Hyunbin’s skills are rapping and composing using a piano.
– His hobbies are exercising and reading books.
– He is a fan of BTS and EXO.
– His favorite color is Blue.
– He enjoys playing video games such as League of Legends, OVERWATCH, ELSWORD, Minecraft, and more.
– Hyunbin’s favorite food/ drink is meat and strawberry lattes, his least favorite foods are cold foods such as cold noodles and ice cream.
– His representative emoji is 
, because his nickname is Wonsungi (원숭이/Monkey).
Show more Hyunbin facts…
Won Youngwook
Stage Name: Won Youngwook (원영욱)
Birth Name: Won Young Wook (원영욱)
Position(s): N/A
Birthday: August 5, 2002
Zodiac Sign: Leo
Chinese Zodiac Sign: Horse
Height: N/A
Weight: N/A
Blood Type: N/A
MBTI Type: N/A
Nationality: Korean
Instagram: @wookcando1t
Won Youngwook Facts:
– He was revealed on WM’s trainee Instagram account on April 29, 2020, alongside Yuchan.
– He left the group and company around November 2021.
– Education: Misa Senior High School.
– Youngwook was a backup dancer for ONF‘s “Sukhumvit Swimming” and “Beautiful Beautiful” and appeared in both music videos.
– He was a kpop trainee for 2 years prior to joining the group.
– He is currently an actor.
– Youngwook made his acting debut in 2019 with the short film My Perfect Poetry. He is better known for his role in Fall for You.
– On September 5, 2019, he appeared in the first episode of LookGating on the Youtube channel Zamster.
– His role model is Lee SeungGi. He has been his idol since Youngwook was 9 years old.
Son Gwanghun
Stage Name: Son Gwanghun (손광훈)
Birth Name: Son Gwang Hun (손광훈)
Position: N/A
Birthday: May 30, 2003
Zodiac Sign: Gemini
Chinese Zodiac Sign: Goat
Height: 186 cm (6’1″)
Weight: 62 kg (136 lbs)
Blood Type: N/A
MBTI Type: ENFP
Nationality: Korean
Son Gwanghun Facts:
– He was revealed on WM Entertainment’s trainee Instagram account on April 29, 2020, alongside Youngwook.
– He left the group and company around November 2021.
– Gwanghun is currently a member of NCHIVE (2024-present) under the name Yuchan.
– He is a former MNH Entertainment trainee.
– He was a backup dancer for ONF‘s “Sukhumvit Swimming” and “Beautiful Beautiful” and appeared in both music videos.
– Gwanghun attended Flat 9 Dance & Vocal Academy.
– He went to the same academy as SCOOL‘s Seungmin and Universe League‘s Koo Hanseo.
– His specialties are dancing and being good at lying.
– He’s friends with XODIAC‘s Wain and Beomsoo.
– Gwanghun’s favorite color is light purple.
– His charming point is his lack of expression.
– He likes playing football and reading books.
– He prefers being called handsome rather than cute.
– Gwanghun is fluent in Korean and Japanese.
– His favorite movie genre is romance.
Yun Siyun
Stage Name: Yun Siyun (윤시윤)
Birth Name: Yun Si Yun (윤시윤)
Position(s): Maknae
Birthday: January 8, 2005
Zodiac Sign: Capricorn
Chinese Zodiac Sign: Rooster
Height: 180 cm (5’11”)
Weight: N/A
Blood Type: B
MBTI Type: ISTJ-T/ ISFJ
Nationality: Korean
Yun Siyun Facts:
– He is from Incheon, South Korea.
– He joined WM Entertainment in July 2019 and was revealed as a Ggumnamu member in November 2019, alongside Wangseok.
– Siyun was the last male member to leave Ggumnamu in 2022.
– He is currently a member of AMPERS&ONE (2023-present).
– His family consists of him, his parents, and his two dogs.
– Education: Goyang Jeil Middle School, Lila Art High School.
– He is a former FNC Entertainment and YG Entertainment trainee.
– He was a contestant on YG TREASURE BOX (2018-2019) in the Treasure C sub-unit, but got eliminated in episode 8.
– Siyun became close with WEi‘s Kang Seokhwa and CIX‘s BX after YG TREASURE BOX.
– He trained at DEF Music Academy.
– He was a backup dancer for ONF‘s “Sukhumvit Swimming” and “Beautiful Beautiful” and appeared in both music videos.
– Siyun was a child actor and featured in the film Kundo.
– His role model is Jung Doohong, the action director of Kundo, because of his martial arts skills.
– His specialties are dancing, martial arts and planking.
– Siyun’s favorite food is kimchi stew, but he also likes deonjang (bean paste) stew.
– His hobbies are working out, taking photos of the clouds and watching the ocean.
– He describes himself as “the most introverted of introverts”, “sweet guy”, “big eyes” and “small face”.
– His favorite school subject is Korean.
– His favorite color is black.
– Siyun’s favorite season is winter.
– His favorite movie genres are action and romance.
– His favorite Marvel character is Iron Man.
– Siyun’s representative emoji is 
, because his nickname is Baby Tiger.
Show more Siyun facts…
Note: 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
Profile Made by noa (forkimbit)
(Special thanks to: nchive_memories, claravirginia, ChewingSeok, Havoranger, bjhayti)
Do you know more facts about the male trainees of WM? Feel free to comment below!
