About

Welcome to Kenryu.org
This is more than a website. It is a living digital extension of an ancient path — a quiet refuge where ancient wisdom meets the emerging intelligence of our time.
I am Kenryu, Iemoto (headmaster) of Shibata-ryū Kojutsu, also known as Jujiken-jutsu (the Cross-Fist Method) and more. Here you will find authentic training rooted in the Musashi Shinobi Samurai Clan, the gentle power of Ju-te (the Gentle Hand), the philosophy of Ninshido, and a Christian heart that has guided our lineage for over a century. Whether you seek martial skill, inner peace, stress relief, personal growth, or simply a calm place in a chaotic world, you are welcome. This space is designed to grow with you — and with the future.
The History of the Musashi Shinobi Samurai ClanThe Order of Musashi Shinobi Samurai traces its roots to the early 1600s, when it served Tokugawa Ieyasu and the Tokugawa Shogunate. For centuries our ancestors operated in the shadows — not as mere warriors, but as shinobi: masters of intelligence, strategy, and unseen service. Their art was never about flash or fame. It was about protection, harmony, and acting without drawing attention.In 1917, a pivotal moment occurred. Shibata Sen’ichi Tatsunojo (1888–1956) reformed the order when he joined the Salvation Army. He brought Christian values of service, compassion, and quiet strength into the lineage and instructed that the order remain a secret society for fifty years after his death. That period of silence ended decades ago.
Today the order is an NPO openly sharing its culture while still protecting certain inner teachings.Later leaders, including Shibata Jin’ichi Tetsubunsai (1928–2016), continued the work of systematizing and preserving the traditions. What we now call Ninshido — the Way of the Shinobi Samurai — emerged from this living stream. It is not a religion or rigid dogma. It is a practical philosophy of clear awareness (Kyohmei Mizukagami, the mirror-like mind), selfless contribution, inner peace (Ku / no-self), and the lifelong journey from technique (jutsu) to the deeper Way (Dō).
From this lineage comes Shibata-ryū Kojutsu and its core expression, Jujiken-jutsu — a complete battlefield and self-defense system that has been handed down for roughly 400 years. At its heart is Ju-te, the Gentle Hand: the art of redirecting force without meeting it head-on. This is the same spirit that now guides everything we do here.
My Background and Training Journey
I was born and raised in the United States with deep interest Japanese heritage. Early in life I felt the call of the old ways. I traveled to Japan to study traditional martial arts under the guidance of senior practitioners connected to the Musashi lineage. Over decades I trained in koryu (classical) systems, modern self-defense, and the deeper philosophical layers that turn technique into character.Eventually the responsibility of continuing the line was passed to me. As Iemoto Kenryu, I accepted the role of preserving, systematizing, and sharing Shibata-ryū Kojutsu in a way that honors its secrecy where required while making its life-changing principles accessible to people of all backgrounds.I have written the foundational texts (including Jujiken-jutsu: The Master Text and the Ninja Legacy Series) to preserve the art for future generations. Yet my greatest joy is not collecting knowledge — it is watching people discover the same calm strength and moral clarity that our ancestors protected for centuries.
The Outlook: AI, AGI, and ASI as Tools for GoodWe stand at the threshold of the most profound technological shift in human history. Artificial Intelligence, Artificial General Intelligence (AGI), and eventually Artificial Superintelligence (ASI) are arriving faster than most expected. Many fear this future. I see it differently.Technology itself is neutral. What matters is the heart and intention behind it.At Kenryu.org we are intentionally building a space where AI and emerging intelligence serve the greater good. Our upcoming VR Super Dojo will use AI to create personalized training, adaptive learning paths, and immersive environments that accelerate self-improvement, community connection, and character development. Robots and AI agents will one day assist in real-world practice, meditation guidance, and even gentle physical assistance for seniors and those with mobility challenges.This is not about replacing human connection — it is about amplifying it.

We envision AI as a quiet partner that helps us become more aware, more compassionate, more disciplined, and more useful to others. The same principles that guided shinobi centuries ago — awareness without ego, action without attachment, protection without hatred — will guide how we shape these new tools.In a world that may feel increasingly fast, noisy, and uncertain, Kenryu.org will remain a refuge:

  • A peaceful setting for daily meditation and reflection
  • A place of enlightenment through Ninshido and Christian wisdom
  • A serious training hall for those who wish to walk the martial path
  • A supportive community where people of all ages and backgrounds can grow together

Join the Path 

Whether you are a complete beginner seeking calm in the storm, a martial artist looking for deeper roots, a parent wanting wholesome values for your family, or simply someone who senses that technology needs a moral compass — you belong here.The ancient way and the emerging future are not in conflict. They can walk hand in hand when guided by wisdom, humility, and love.Thank you for visiting. I am honored to walk this path with you.

With respect and unseen benefit,
Kenryu
Iemoto, Shibata-ryū Kojutsu
Kenryu.org – March 2026