Be Invincible in Both Worlds, Starting from the Study of Mixed Martial Arts

Chen Feng travels through Zongwu and assumes the name Gujinyu. At the beginning, he solves the deadlock of the Huanhua Sword Sect and obtains the Heavenly Book of Forgetfulness. He reverses the complete version of the Nine Yang Divine Art from Zhou Zhiruo and creates the Heavenly Mystery Tower with Gongsun Lan... Being knocked off a cliff and falling into Lingyun Cave? I learned to be invincible in all directions, but I didn't expect to return to modern society with the Xuanyuan Sword... I thought everything was just a dream when I was obsessed with writing novels, but I found that one hand kneaded steel like kneading dough... After going back and forth, I was finally able to cross the two realms freely. Wouldn't this bring Zongwu's mountains of gold, silver and jewelry with me? By the way, study martial arts with the most cutting-edge technology. Gold and silver jewelry can be brought into modern times, but what about modern technology? ! Yin Zhong is immortal, right? After being hit by the sword, it will be annihilated with the wound as the center, and no ashes will be left in the end. The Great Demon God Hun Tian is invincible? Arrange absolute zero field generating devices around him... A small-scale conflict in Northern Europe quickly turned into a full-scale war. With its super perception and super empire, Gu Jinyu realized that this war was not only between humans...