Comprehensive Martial Arts: One Person and One Sword Can Kill All the Villains in the World!

Traveling through the world of mixed martial arts, I was hunted down at the beginning and found myself in a deadlock. At the critical moment, fortunately, the time-travel system was activated in time, and he stepped into the innate world to kill the powerful enemy. From then on, one person and one sword traveled through the rivers and lakes where all countries coexisted, exploring the behind-the-scenes and meeting the heroes of the world. Embark on a legendary road to the pinnacle of martial arts...