Daitō-ryū Aiki-jūjutsu
The art was adapted from Daitō-ryū Aiki-jūjutsu as it was taught by Choi Yong-Sool (최용술) when he returned to Korea after World War II after having lived in Japan for 30 years. This system was later combined by Choi's disciples with kicking and striking techniques of indigenous and contemporary arts such as Taekkyon, and Tang Soo Do; as well as various throwing techniques and ground fighting from Japanese Judo.