Instructors
Certification
Multi-Discipline Black Belt
Taekwondo Master
Master Oh
Founder & Head Master
I was born on January 14th, 1971, in Pusan, South Korea. My father was a Master Sergeant in the Marine Corps in Korea and served in both the Korean War and Vietnam War as a U.S. Marine. He was always strict with me, and when I was 3 years old he decided to retire, and our family moved to Seoul Korea in 1974.
My father wanted me to grow up strong, mentally and physically, so he put me into a Taekwondo school when I was 5 years old. However, I really didn't like to practice martial arts back then. I would skip classes and when my father found out he was very disappointed. After a year, some older kids took my shoes from me and my father put me into another martial art called Sip Pal Ki — old Korean military martial arts — under Master Young Soo Park (7th Degree Black Belt). I studied under him until I earned my 2nd Degree Black Belt, then began training in Taekwondo as well.
As a teenager, I studied deeply into martial arts and began competing: • 1989: 1st National Kung Fu Competition • 1992: 1st Place Form, Spear, and 75kg Division Sparring in Seoul, Korea • 1992: Wu Shu Asian Games International Team Trial • 1996: Started working as Master at Korea Professional Taekwondo Federation; also studied Aikido, Kumdo, Judo, and Taekkyun • 1997–1999: Demonstrated and taught at West Point, 707 Special Force, President Bodyguard Camp, and Green Berets in Korea • 1997: International Team for World Professional Taekwondo Championship • 2000: Came to America for Martial Arts demonstration
Elite Experience
- •1st Place Sparring & Forms — Seoul, Korea 1992
- •International Team — World Professional Taekwondo Championship 1997
- •Demonstrated at West Point & 707 Special Force
Professional Career
- •Demonstrated at President Bodyguard Camp & Green Berets
- •Multi-Discipline: Taekwondo, Sip Pal Ki, Kung Fu, Aikido, Kumdo, Judo
Certification
5th Degree Black Belt
Taekwondo Master
Master Dias
Director of Discipline
Master Dias is the Director of Discipline at Mu Han Total Martial Arts, bringing 23 years of dedicated martial arts experience to the Franklin community. His credentials span multiple disciplines, holding 5th degree black belts in Taekwondo, MMK Taekwondo, and Jing Wu Kung Fu, along with training in Yoo Sool (K-judo/K-jujitsu).
He holds prestigious international credentials, including a 3rd Class International Master License and a 3rd Class International Poom/Dan Examiner License, reflecting his commitment to maintaining the highest standards of Taekwondo instruction and evaluation. He is also a Gold Medalist in Sparring at the NY Championship — accolades that reflect decades of disciplined training and elite competition.
Master Dias is known for his ability to connect with students of all ages, creating an environment where discipline, respect, and personal growth thrive.
Elite Experience
- •5th Degree Black Belt Taekwondo
- •5th Degree Black Belt MMK Taekwondo
- •5th Degree Black Belt Jing Wu Kung Fu
- •Yoo Sool (K-judo/K-jujitsu)
Professional Career
- •3rd Class International Master License
- •3rd Class International Poom/Dan Examiner License
- •Gold Medalist in Sparring — NY Championship
- •23 Years Martial Arts Experience
Expert Instructors
Learn from certified masters with decades of combined martial arts expertise and proven teaching excellence
Why Learn From Our Instructors
World-Class Expertise
Led by senior Korean trained masters with decades of experience across Taekwondo and martial arts — trained at the highest international levels
Personalized Attention
Our instructors genuinely care about every student, providing individual guidance tailored to your skill level and personal goals
More Than a School — A Family
At Mu Han, students and teachers are family. We build lasting relationships rooted in respect, loyalty, and mutual growth
Frequently Asked Questions
Find answers to common questions about our programs, training, and membership
We offer Little Tigers for ages 4-6, Adult Martial Arts for ages 13 and up, and an Olympic Taekwondo Competition Sparring program for dedicated competitors. Everyone is welcome, regardless of experience level.
No prior experience is required! We welcome beginners as well as experienced martial artists looking to refine their skills. Our instructors will guide you every step of the way.
Comfortable athletic wear is fine for your first class. If you decide to continue, we'll guide you on getting a uniform and gear.
With more senior Korean trained masters than any other martial arts school, we are rooted in experience and heritage. As part of the World Taekwondo Federation, we honor tradition while providing elite instruction that builds confidence, discipline, and resilience in every student.
We recommend attending at least two classes per week for steady improvement, but you can train more frequently based on your goals and schedule.
Yes! Our Olympic Taekwondo Competition Sparring team is made up of dedicated students who compete in tournaments across the Franklin area and beyond. Ask us about joining the team!