Koyama Dojo

Welcome to Hakko Denshin Ryu Jujutsu. We practice a traditional Japanese martial art specializing in the use of wrist locks and joint manipulation. Hakko Denshin Ryu does not rely on strength but is based on natural movements. It is designed to handle attacks by applying various amounts of pressure to the body's meridians or energetic lines. The result causes very intense pain which destroys the attacker's will to continue.

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