Master Sejin Han

was born in South Korea and grew up learning Taekwondo and Wushu. He began modern Hapkido when he entered the Korea Military Academy (KMA).

Master Han continued his training in Modern Hapkido (received 5th Dan in 2012), even after graduating and becoming a commissioned officer. He also trained in Iaido, Kick-Boxing, and Kung-Fu. Although he felt he was at his strongest and had reached the pinnacle of training, he was searching for something deeper.

In 2013, Master Han met the Hapkiyusul Successor, Kim Yunsang. For the first time, he witnessed unparalleled, unexplainable energy, skill and depth of mastery from an old man who barely weighed 100 pounds.  Master Han realized that the only way to achieve this state and skill of hapki was through practicing the unaltered form of Hapkiyusul, as it was intended to be. As a disciple of Kim Yunsang, Master Han has experienced a fundamental change as a martial artist in his body, mind and spirit by learning the depth, knowledge and true understanding of hapki.

In 2019, after 20 honorable years of service, Master Han retired from the army as a Major and moved to the United States. He made a lifelong commitment to Kim Yunsang that he would teach and propagate Hapkiyusul.*

*also known as Daitoryu Aikijujutsu or Daedongryu Hapkiyusul in Korean