This World Is a Little Weird

Lying down at home, I suddenly traveled to another world. I didn't expect that the beginning was on hell difficulty, and I finally escaped beheading. Tell me, I am the chosen one, and I am asked to save the world. Isn't this an ancient world with martial arts colors? Does it need to be saved? But gradually, I found that this world is a bit strange... The system adds some flow, but it won't appear in the early stage. New author, please recommend and collect.