Martial Arts Thirteenth Floor

Practicing martial arts is like building a tall building. Building a tall building leads to freedom. That young man, armed with a rusty knife, walked all the way from a small town in the north, built tall buildings, cut off the yin and yang, and created a peaceful and prosperous age. The thirteenth floor of Martial Arts, the first floor and the sky. A calamity on the third floor and a hurdle on the sixth floor. The world on the ninth floor is difficult, but the twelve are already immortals.