Time Travel Is Indeed the Emperor's Ruthlessness

Cheng Chen somehow traveled through time and met the emperor. I am finally the heroine of the time-travel drama, right? But why is it so difficult to be the heroine? Where is the halo of the protagonist? It hurt so much. She never liked the emperor again. She just wanted to go home. She didn't expect that she would find him. But the emperor only used her as a means to win favor. It didn't matter. She was leaving anyway...