Master Jinsub Kim

Head Master, 5th Degree Black Belt

Master Jinsub Kim has dedicated his life to Taekwondo, not only as a martial artist, but as a teacher, mentor, and leader for students of all ages.

A former Korean national team member and graduate of Yongin University, Master Kim brings a deep understanding of traditional Taekwondo, discipline, and high-level martial arts training to every class. Before opening his school in the United States, he also spent three years instructing at the Police Academy in Ethiopia, where he helped train students in focus, control, and practical martial arts skills.

In 2015, Master Kim opened Yong-In Martial Arts in Cypress, California with the dream of creating a school where students could grow in confidence, strength, discipline, and character. After building a strong community in Cypress, Yong-In Martial Arts expanded to Lake Forest, allowing more families to experience the positive impact of Taekwondo.

Today, Master Kim continues to lead Yong-In Martial Arts with the same passion that started it all. His goal is to help every student, from young beginners to advanced martial artists, develop real Taekwondo skills while becoming more focused, respectful, confident, and resilient in everyday life.

Call Us

Our Mission

Growth Beyond the Mat

At Yong-In Martial Arts, our mission is to help students grow far beyond the mat.

We believe Taekwondo gives students a powerful way to build confidence, focus, discipline, respect, and perseverance. Every class is designed to challenge students physically while helping them develop the mindset and character they need at home, at school, at work, and in the community.

For children, that may mean learning to listen better, stay focused, show respect, and believe in themselves. For teens, it may mean building confidence, self-control, and a positive outlet for stress. For adults, it may mean finding strength, fitness, self-defense, and a renewed sense of purpose.

Whatever brings a student through our doors, our goal is to help them leave stronger, more confident, and more prepared for life.

Try a Free Class Today!

Come experience a beginner-friendly Taekwondo class and see how Yong-In Martial Arts helps students build confidence, focus, discipline, and real martial arts skills.