The Renshinkan system stands as a distinct branch within Daitō-ryū, carefully balancing the preservation of its founder’s original teachings with the need to remain relevant in modern times. At its core, it is built upon the foundation of Jujutsu, structured through the modern Dan ranking system and traditional scrollls while seamlessly integrating the principles of Aiki. Central to Renshinkan’s philosophy is the emphasis on natural and free movement, which emerges through consistent and correct practice. This approach refines precise movements, subtle principles, and a deep understanding of body mechanics fundamentals that serve as the basis for practical self-defense while maintaining the traditional philosophy and structure of the art. This documentary takes you on a journey from its early inception to nowadays.