The heroine Shen Qingci, 25 years old, was a top student at China Foreign Affairs University and a champion of tactical gaming games. Travel through time and become a fourteen-year-old orphan girl in the fictional "Dayuan Dynasty". In order to avoid being sent to the palace as a maid by her family, she relied on her understanding of the ancient etiquette system and her thinking beyond the times to impersonate the identity of her brother who died young and embark on the road to the imperial examination.
