Modern Samurai Academy school
San Antonio, TX • Martial Arts
Modern Samurai Academy
Building Modern Warriors Through The Gentle Powerful Way
4+
Hours Training
Pro
Level Coaches
3–6
Grades
2x+
Academic Growth
Ju Ki Do teaches students not to meet force with force, but to embrace and redirect energy for maximum effectiveness.
Building modern warriors through core values, discipline, and the art of healing rather than destruction.
Ju Ki Do blends 14 traditional martial arts disciplines into one comprehensive system for complete development.
Master the Gentle Powerful Way through Ju Ki Do - a unique blend of 14 martial arts disciplines that builds character, discipline, and the art of healing over destruction.
Grades 3-6
The exclusive home of Ju Ki Do martial arts. Our unique style blends 14 traditional martial arts disciplines to develop fitness, self-defense skills, and character in young warriors.
Sensei Scottie Jackson
We'll be using the same academic software that Alpha School uses to enable students to learn 2x in 2 hours. Students complete core subjects in just two hours daily, allowing more time for athletic development.
Personalized, Mastery-Based Learning: 1:1 learning plans and spaced repetition to ensure mastery over all concepts.
Afternoon Training: Core academics are crushed in 2 hours, freeing up afternoons for athletic development.
Maximized Potential: Accomplish more academically, athletically, and develop life skills without 6-hour classroom days.
Learn More
Video Library
Full overview on how our personalized academic software helps students learn twice as much in half the time.
2 hours of elite, AI-powered academics. 3+ hours of pro-level martial arts training. Every day.
Students move into personalized, mastery-based academics, crushing a full day's worth of academics in 2-3 focused hours.
Our team brings generations of martial arts wisdom and dedication to developing well-rounded martial artists. We focus on building character, discipline, and respect both on and off the mat.
Scottie C. Jackson
Sensei, Founder of Modern Samurai Academy
senseijackson@themodernsamuraiacademy.com
Sensei Scottie C. Jackson is a 5th Degree Black Belt in Ju Ki Do who has trained directly under Kyoshi Ivan Ujueta since 2001. A U.S. Air Force veteran and successful entrepreneur, he brings real-world experience to his teaching. He specializes in working with children and revamped or restructured, and wrote the new SWAT curriculum. He is living the “Gentle Powerful Way” and is helping others to do the same.
Isabella Castellanos
Sensei
isabella.castellanos@themodernsamuraiacademy.com
Sensei Isabella Castellanos is a 3rd Degree Black Belt in Ju Ki Do who has trained under many instructors, but mainly Kyoshi Ivan Ujueta and Sensei Scottie Jackson since 2008. Recently a graduate with a Bachelor's Degree in Psychology, she uses her knowledge to connect and understand every individual. Her interests are in Sports Psychology which allows her to comprehend the mindset of athletes and wants to help them improve physically, mentally, and emotionally.
DeWayne Banks
Sensei
dewayne@pkimma.com
Sensei DeWayne Banks is a dedicated martial artist and instructor who brings over a decade of training, competition, and leadership experience to the Modern Samurai Academy. A 2nd Degree Black Belt in JuKiDo, he began his journey in 2015 and has since evolved into a skilled, patient, and inspiring coach for students of all levels. With a foundation in traditional JuKiDo and a deep commitment to the values of discipline and respect, Sensei DeWayne combines classical martial arts training with real-world experience.
Ashley J. Sepulveda
Assistant Instructor
Ashley J. Sepulveda began her martial arts journey in 2011 in Toledo, Ohio where she received teachings in Shotokan/American Karate, ChukidoKwan, and Taekwondo. She earned her first degree Black Belt in 2015 and afterwards spent time leading special education youth classes, adult classes, and competing both nationally and internationally. Her training under PKIMMA began in 2024 and she has since quickly climbed the ranks, recently earning her brown belt.
Jorge R. Garcia Jr.
Assistant Coach
jorge.garcia@themodernsamuraiacademy.com
Jorge R. Garcia Jr. brings a passionate, athlete-first mindset to the Modern Samurai Academy coaching team. With over four years of experience coaching youth sports, Jorge focuses on building athletes from the ground up—emphasizing fundamentals, skill development, and personal growth both on and off the mats.
Ivan Ujueta
Kyoshi, Founder of Ju Ki Do
Kyoshi Ivan Ujueta founded Ju Ki Do in 1988 after 50+ years of martial arts study. His journey began at age 13 in Queens, New York, studying Judo, Jujutsu, and Aikido. He lived 11 years as a Zen Buddhist monk before accepting Christ in 1984, transforming him into a "godly warrior." He has mastered 14 martial arts styles and worked as a bodyguard for high-profile dignitaries.
“PKIMMA has truly been a life changing contribution to our two boys. We have noticed a positive change in their skill level and most importantly we've noticed a change in their attitudes. We are so grateful for the genuine interest shown in how our boys develop on and off the mat.”
— Mr. and Mrs. P. Hanson, Parent
What local news outlets are saying about our innovative approach.
KENS 5
July 31, 2025
"The AI academic software is unique in that they are able to finish their Common Core in just two hours a day in the morning. That frees time in the afternoon to develop martial arts skills and learn life skills from a leader like Sensei Jackson."
Read Article
Modern Samurai Academy is located in San Antonio, TX, providing access to premier training facilities.
Samurai training session
Experience the traditional atmosphere of our martial arts training
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