The Regent's Substitute Medical Concubine

She actually burped because she stayed up late watching a drama. How could she deserve the title of a little genius of Chinese medicine in the 21st century? After passing through, she discovered that she was still a substitute. On their wedding night, the masked regent asked her to go through the side door and worship the rooster. He also asked her to guard the vacant room alone and gave her the most miserable courtyard in the palace. What a bloody plot! It doesn't matter, she doesn't care! However, when she was about to kill the enemy, someone stood in front of her: "Who dares to bully my princess?!" When someone looked at her a few more times, someone said: "Who allowed you to look at my princess?!"