Immortality Begins with Copying Martial Arts

Yang Hao traveled to a strange world of martial arts. There are warriors who fly into the sky and escape from the earth, demons who choose people to eat, bizarre extraterrestrial races... And gods and Buddhas who use heaven and earth as a chessboard and all races as chess pieces. And Yang Hao also has a system that can copy other people's skills. Your knife skills are very good, let me copy them. Your two families' martial arts skills complement each other, but you don't get along. It doesn't matter, I can learn both.