I Just Saw a Painting, How Come I Became a Mountain God?

Yun Qing discovered an ancient painting while sorting out her master's belongings. The people in the ancient painting looked more and more familiar to her. Suddenly, she saw the person in the painting blinking at her, and she traveled through time before she could react! (No cp, no ambiguity, poor writing style! The protagonist of the short story unit, don't criticize if you don't like it!)