Dobromir Petrov Drumev graduated from the Technical University of Sofia, specialty "Technology of metals and metalworking machines", as engineer, and NSA Sofia, CSDK as an aikido coach. Protects a dissertation at the NSA on "Methodology for Psycho-Pedagogical Impacts and Interactions in Aikido Education" in 2001.
At the same time, he worked at the Central Institute of Computer Science and Technology as a research fellow and post-graduate student, and later he was a senior instructor in combat-applied techniques at the Central Army Sports School. Since 1999 he has been teaching "Techniques and Tactics for Protection" in the Vocational Training Department of NSS.
He began studying martial arts with judo in 1975 and karate in 1978 in his native town of Sliven. As a student in 1985, he studied Aikido, two years later he defended 1st Dan and created one of the first Aikido clubs. D. Drumev is a 5th dan Aikikai, he is teaching in Zendokan club and is a part-time lecturer at the NSA's CSD in the postgraduate courses. He conducts the theoretical, methodical and technical training of Aikido coaches in Bulgaria. In parallel with his teaching, he studied Jay Jitsu under the direction of Sekiguchi Komei, 10th Dan, Muso Jikiden Eishin Ryu Iai Jutsu, 21-st Generation Classical Japanese Swordsmanship, President of Komei Juku, Vice President of WoMAU.
