Zheng Yurui, a gold medal service manager in the 21st century, traveled through time and became a noble concubine in the Yan Dynasty who fell out of favor and committed suicide. Relying on modern psychology, customer service skills and keen insight, she not only survived in a dead-end harem environment, but also gradually established herself as an irreplaceable and key figure who could solve the emperor's "heart disease", and launched a high-IQ psychological and power game with the moody emperor Xiao Jinyan.
