It emphasizes “intelligence in motion” instead of relying on sheer strength, superior speed, and flexibility. To-Shin Do is a modern ninjutsu system that puts science and natural movement at its core. It is based on psychological warfare techniques that involve manipulating an attackers intentions and make use of the physics of timing, balance, angling, leverage and gravity. Rather than working hard to defy gravity, the system uses it as an ally. It helps practitioners respond to real-world attacks with minimal effort for maximum effect. To-Shin Do is a comprehensive self-protection system that was used by Japan’s Ninja Shadow Warriors. It focuses on intelligence in motion and does not rely on strength, speed or flexibility. The system leverages the musculoskeletal system to help practitioners defend themselves in realistic scenarios. It is a modern form of Taijutsu and is designed to help practitioners respond to attacks with minimal effort and maximum effect.