マス大山公式サイト

Mas Oyama Kyokushinkaikan
The official website of Sosai Mas Oyama

Mas Oyama Kyokushinkaikan is managed by Sosai Mas Oyama's family to protect his legacy and teachings. Dedicated to preserving the authenticity of Kyokushin karate, we safeguard his rights, materials, and vision. This site offers an official hub for supporting his work, connecting practitioners, and celebrating Sosai’s enduring impact.
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Preserving the Legacy of Sosai Mas Oyama
Preserving the legacy of Sosai Mas Oyama, this platform is dedicated to protecting his rights and safeguarding the authenticity of his teachings and materials. From trademark protection and the historic Honbu Dojo to the Kiwami Bito philosophy, global supporter network, event listings, and exclusive merchandise, we are committed to honoring Sosai’s vision while supporting the Kyokushin community worldwide.

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