I Just Made up a Myth, but God Actually Took It Seriously

Internet writer Shen Yuan traveled to the world of immortal cultivation and became the only survivor of a dilapidated sect that had just been exterminated. He has no talent, no background, and his enemies are still chasing him all over the world. In despair, he discovered that the world's cultivation system was actually related to "legends" and "beliefs"! As long as someone believes the story you make up, it will become true!