Aikido Jo Kata - 13 no Jo, 31 no Jo, 22 no Jo【Swing symmetrically】
Shirakawa Ryuji shihan - aikikai 6th dan
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DVD Volume 1
DVD Volume 2
Amazing Aikido 01
Amazing Aikido 02
・Shirakawa Ryuji shihan interview
・Aikido Special Self Defense Techniques
Dynamic Aikido