Martial Arts: Starting from a Seemingly Real System

One day, all modern equipment failed, and a retro style appeared overnight. Suddenly, martial arts fell from the sky... Qiao Rui: Hey, I found a set of advanced light-weight martial arts of Honda Boguang... In the future, can I fly over eaves and walls, climb over walls and enter houses... Jiang Xueyun: What do you think of Stepping on the Moon and Leaving Fragrance? Liu Xinyue: Qiao Rui, I found this set of Eighteen Dragon Subduing Palms. Do you want it? Um, no, what is Dragon Subduing Without Regret? Tian Jing: ... Diwu Qingcheng: ... Zhao Lingying: ...