The method's origin
Grand Master Won Kuk Kim
Sixty years of martial arts mastery. Thirty years of direct practice with the children who needed it most.
Biography
Grand Master Kim is the son of Supreme Grandmaster Bok Man Kim, one of the founding originators of Taekwondo in Korea. Where most martial artists inherit one branch, he spent a lifetime taking ten of them back to the shared root: what the body is doing, why the movement was built that way, and what the breath is doing underneath it.
The household
Trained from age two by his father, Supreme Grandmaster Bok Man Kim, one of the founding originators of Taekwondo in Korea. Training was not part of the day, it was the day.
Hong Kong
Lived for years in a household his father ran like a monastery, where masters came to be trained and stayed. He learned the arts firsthand rather than secondhand, which is the difference between knowing a technique and knowing why it exists.
Training the trainers
Continued his father's work, training other masters who went on to open schools, and instructing military and law enforcement in the United States and Hong Kong.
The turn to children
He set that work down to teach children instead, and built the methodology that became TRUETH Jin Sun Do. He runs a small school in Woodinville and has always treated this as an act of service rather than a business.
Asked why a master of his standing was teaching children rather than militaries, he answered that it was what he was supposed to do.
What he built
TRUETH Jin Sun Do unifies Hapkido, Aikido, Kenpo, Taekwondo, Karate, Thai Boxing, Kung Fu, Judo, Ninjutsu, and Gumdo into one methodology built around regulation rather than combat. It pairs somatic movement with specific breathing patterns and emotional literacy practice, and it is delivered to children who in many cases have not been reached by anything else.
This is not a weekend certification. It is a lifetime of lived mastery, refined through decades of direct work with children, and it is the reason TRUETH exists as an organization rather than as one small room in Woodinville.
From the academy's own pages
The biography on the academy's website adds these details, in its own words: he was born in 1956 in Daejeon, South Korea, and trained under his father, Supreme Grand Master Bok Man Kim. The family moved to Hong Kong in 1968, and he continued studying under his father until 1985, when, per the biography, he set off on his own to the United States. In Master Kim's own words, recorded in a TRUETH conversation in 2026, he came to the United States in 1981. The academy's home page says he founded the Jungyae Moosul system in 1985, which the academy describes as comprehensive martial arts education.
The same biography says he has trained U.S. Army personnel, law enforcement officers and officers of the Hong Kong Police, and that he is a certified instructor of the National Law Enforcement Handgun Retention program. Read the academy's biography.
“While every style may on the surface appear different from all the others, their root theories and principles are all the same.”
Master Kim, on the academy's website
Then and now
Grand Master Kim in a suit
Grand Master Kim in his dobok at the Woodinville academy
In pictures
Browse the photographs by swiping, or use the Previous and Next links.
Photo: TRUETH Foundation Grand Master Won Kuk Kim in a suit, smiling, seated at a desk with a pen in hand
Photo: Jungyae Moosul Martial Arts (woodinvillekarate.com) · source Grand Master Won Kuk Kim in a low kneeling stance, holding a flag weapon
Photo: TRUETH Foundation Grand Master Won Kuk Kim performing a form on the red mats
Photo: Jungyae Moosul Martial Arts (woodinvillekarate.com) · source Grand Master Won Kuk Kim holding a kick shield for young students in class
Photo: TRUETH Foundation Grand Master Won Kuk Kim laughing in the academy, in a navy dobok
Photo: Jungyae Moosul Martial Arts (woodinvillekarate.com) · source Grand Master Won Kuk Kim bracing a kick shield as a student lands a jumping strike
Photo: Jungyae Moosul Martial Arts (woodinvillekarate.com) · source Black and white photo of Grand Master Won Kuk Kim holding a target as a young student kicks, the class watching
Photo: TRUETH Foundation Grand Master Won Kuk Kim in a martial arts stance on the red mats
Photo: TRUETH Foundation Grand Master Won Kuk Kim standing with hands clasped beside an arched window and weapon rack
On video
TRUETH explainer: Meet Grand Master Kim
Meet Grand Master Won Kuk Kim at the TRUETH academy in Woodinville, Washington. Master Kim has practiced martial arts for more than sixty years and has spent more than thirty of them teaching neurodivergent children in Greater Seattle. TRUETH Jin Sun Do brings together structured breathing, martial arts movement and emotional literacy. Children with and without a diagnosis train side by side. Classes serve children ages 5 to 17. Start with a conversation, then come watch a class. Scholarships come first.
Read the transcript
Meet Grand Master Won Kuk Kim at the TRUETH academy in Woodinville, Washington. Master Kim has practiced martial arts for more than sixty years and has spent more than thirty of them teaching neurodivergent children in Greater Seattle. TRUETH Jin Sun Do brings together structured breathing, martial arts movement and emotional literacy. Children with and without a diagnosis train side by side. Classes serve children ages 5 to 17. Start with a conversation, then come watch a class. Scholarships come first.
Photo: TRUETH Foundation
Start with a conversationFamily tree and lineage
Every line below names its source. Where we could not find one, we left it out. Students are not listed here.
His father and teacher
Supreme Grandmaster Bok Man Kim 김복만 (金福萬)
1934 to 2021. Early taekwondo pioneer in Southeast Asia, 11th dan, creator of Chun Kuhn taekwondo. Grand Master Won Kuk Kim's father, under whom he trained.
Source: Wikipedia: Kim Bok Man; 위키백과: 김복만 (무술가); Jungyae Moosul Martial Arts: Our History; Marysville Martial Arts: Jungyae Moosul
Grand Master
Grand Master Won Kuk Kim
Born 1956 in Daejeon. Founded the Jungyae Moosul system (1985, per the academy's home page). Leads the Woodinville academy.
Photo: TRUETH Foundation 
Photo: TRUETH Foundation Source: Jungyae Moosul Martial Arts: Our History; Jungyae Moosul Martial Arts: home page, Who is Master Kim?
His sons
Jun Ho Kim
His son, who trained under his father and his grandfather. (The 2014 video spells his name Joon Ho.)
Source: Jungyae Moosul (YouTube): Jungyae Demonstrations for Hollywood Film
Do Hun Kim
His son.
Source: TRUETH records (2026)
Students of his who lead schools
Grand Master Michael Davis
Personally trained by Grand Master Won Kuk Kim from 1990; leads Jungyae Martial Arts of Kirkland.
Source: Jungyae Martial Arts of Kirkland
Grand Master Brad Shipp
Trained in Jungyae Moosul under Grand Master Won Kuk Kim from 1995; leads Complete Martial Arts in Roseland, New Jersey.
- 1934
Bok Man Kim is born on December 3.
Source: Wikipedia: Kim Bok Man; 위키백과: 김복만 (무술가)
- 1941
At seven, Bok Man Kim begins training in taekkyon, a Korean martial art.
Source: Wikipedia: Kim Bok Man; 위키백과: 김복만 (무술가)
- 1956
Won Kuk Kim is born in Daejeon, South Korea, and trains in traditional Korean martial arts under his father.
- 1962 to 1964
In Malaysia, Bok Man Kim helps General Choi Hong-hi develop fifteen taekwondo patterns.
Source: Wikipedia: Kim Bok Man
- 1968
The Kim family moves to Hong Kong, where Won Kuk Kim keeps studying under his father.
- 1981
In Master Kim's own words, he comes to the United States: "I came to United States in 1981." The academy biography gives 1985.
Source: Grand Master Won Kuk Kim, recorded TRUETH conversation, 2026; Jungyae Moosul Martial Arts: Our History
- 1985
Per the academy's home page, he founds the Jungyae Moosul system.
Source: Jungyae Moosul Martial Arts: home page, Who is Master Kim?
- 1990
Michael Davis joins the Jungyae academy in Kirkland and is personally trained by Grand Master Won Kuk Kim. He later takes over the founder's school.
Source: Jungyae Martial Arts of Kirkland
- 1995
Brad Shipp moves to Seattle to train in Jungyae Moosul under Grand Master Won Kuk Kim.
- 1997
Brad Shipp opens his first studio, in Woodinville.
- 2014
Master Kim's federation channel publishes his demonstration of the form Yu Gang Kwon, and his son Jun Ho Kim's demonstrations hosted by Grand Master Shipp.
Source: Jungyae Moosul (YouTube): Grandmaster Won Kuk Kim, Yu Gang Kwon; Jungyae Moosul (YouTube): Jungyae Demonstrations for Hollywood Film
- 2018
Supreme Grand Master Bok Man Kim awards Michael Davis his 8th-degree black belt on July 22.
Source: Jungyae Martial Arts of Kirkland
- 2021
Bok Man Kim dies on August 14, at 86.
Source: Wikipedia: Kim Bok Man; 위키백과: 김복만 (무술가)
Elsewhere on the web
- Who is Master Kim? (Our History) Jungyae Moosul Martial Arts. The academy's own biography: born 1956 in Daejeon, trained under his father, Hong Kong from 1968, the United States from 1985.
- Kim Bok Man Wikipedia. Reference article on Supreme Grandmaster Bok Man Kim (1934 to 2021), Master Kim's father and an early taekwondo pioneer.
- Taekwon Do Pioneer Supreme Master Bok Man Kim Black Belt Interviews (YouTube). A long interview with Master Kim's father about his life in the martial arts.
- Jungyae Moosul in Marysville, Washington Marysville Martial Arts. Describes Jungyae Moosul as developed by Kim Won Kuk, son of Kim Bok Man.
- Jungyae Martial Arts of Kirkland Grand Master Michael Davis. A school whose head instructor was personally trained by Grand Master Won Kuk Kim from 1990.
- Complete Martial Arts, Roseland NJ Grand Master Brad Shipp. Grand Master Shipp trained in Jungyae Moosul under Grand Master Won Kuk Kim from 1995.
- Jungyae Demonstrations for Hollywood Film Jungyae Moosul (YouTube). Master Kim's son Joon Ho Kim in demonstrations hosted by Grand Master Brad Shipp (2014).
- Jungyae Moosul Martial Arts on Facebook Jungyae Moosul Martial Arts. The academy's own page.
- @jungyaemoosul on Instagram Jungyae Moosul Martial Arts. The academy's own account.