The world's martial arts originated from Shaolin, but this is not necessarily the case. China has thousands of years of history, and wars have continued, and martial arts evolved from the way of defending and defending in wars. Since the Warring States Period, there have been many famous swordsmen and assassins. By the Three Kingdoms, there were even more heroes. Each general and character had his or her own set of methods of offense, defense, and physical strength, which is today's martial arts or internal strength. This story is fictionalized after the Warring States and Three Kingdoms, when China was unified, and the wisdom left behind by famous generals.