Iaido is a refined Japanese martial art centered on the elegant and disciplined art of the sword (katana) with precision and purpose. Rooted in centuries-old samurai tradition, Iaido trains both mind and body, emphasizing awareness, graceful movement and mental composure. Practitioners develop sharp reflexes and focused intent through solo kata — structured forms that simulate real scenarios.
Though not practiced for self-defense, Iaido cultivates a deep sense of readiness, concentration and respect for tradition.
Visitors
Please see our schedule for times and locations.
You’re welcome to come watch a class at no cost — we encourage it!
If you’d like to try an introductory session or learn more about class fees, just ask the instructor.
Contact: iaido@ny-jss.org
News
Find current news on our Facebook page: Nichibukan Iaido
Instructor
Ji You Ni began his Iaido journey in 2005 while completing his final years at the New Jersey Institute of Technology in Newark, where he majored in mechanical engineering. What started as a pursuit of martial discipline soon intertwined with his academic training, his engineer’s eye for precision and mechanics gave him a unique perspective on the fine details of iai.
Ni Sensei studied under John Prough Sensei until Prough’s passing in 2013. During that time, John’s wife, Sachiko Yamauchi Prough, encouraged him to explore naginata while waiting for iaido class to begin. What began as a suggestion quickly grew into a parallel passion, and he embraced naginata with the same dedication he brought to the sword.
Over the years, his devotion to both arts has been recognized through numerous titles, awards and tournament achievements. Today, he holds the rank of 5th Dan in Iaido, awarded by the All United States Kendo Federation (AUSKF), and 3rd Dan in Naginata.
Known for his patience, discipline and tireless commitment to honing his craft, Ji You Ni now carries forward his journey not only as a lifelong student but also as a respected instructor. His presence and leadership continue to strengthen the Japanese Swordsmanship Society, a community he deeply values.
About Iaido
The foremost weapon of the Samurai was the Japanese sword or nipponto. Iaido is basically the drawing of the sword to deliver a counterattack, following up and returning the sword to its scabbard. These techniques are taught by means of prearranged solo exercises of great precision called kata. Iaido is a pure martial art in that there is little sport or competitive aspect to it.
The Nichibukan teaches various Japanese sword arts but its primary focus is upon iaido. The styles of iaido practiced at our dojo are the Seitei-gata Iaido of the Iaido section of the All Japan Kendo Federation and the Muso Shinden Ryū, which is a Ko-Ryū or old style of Iaido.
Guidelines
For more information, please read our practice guidelines:
What equipment is required?
For your first few classes, please wear comfortable clothing that allows free movement of your arms and legs — sweatpants and a t-shirt are perfectly fine. If you already own a gi and hakama from another martial art, you're welcome to wear them.
We’ll provide a bokken (wooden sword) for you to use at the start, so no need to bring one.
If you decide to continue, you’ll need to purchase a pair of kneepads, since we spend a lot of time kneeling and moving on our knees. Most soft, flexible volleyball kneepads work well for Iaido. You may also choose to invest in Iaido-specific kneepads, which tend to be a bit more expensive. If possible, try them on before buying — make sure you can kneel comfortably and that they don’t restrict circulation in your legs.
Eventually, you’ll want to invest in your own practice gi and hakama, as well as an iaito (practice sword made of metal). However, please don’t purchase anything yet, especially a sword, until you’ve spoken with the instructor. It’s important to choose the right length and weight of iaito that suits your body and level of experience.
Do you also instruct tameshigiri (test cutting)?
No, we do not cut bamboo or other targets.
Affiliation
JSS is a member of the Greater Northeastern United States Kendo Federation (GNEUSKF) and the All United States Kendo Federation (AUSKF), which is a member of the International Kendo Federation (FIK). All Iaido ranking is done through this link.