Yoon Dan Oh had enjoyed a comfortable life as the beloved youngest daughter of a wealthy family, but not anymore. Now the head of the household, she runs the Ihwawon Inn. The current guests are scholars preparing for the civil service entrance exam in hopes of becoming high-ranking officials. Among them are Kang San, Kim Si Yeol, and Jeong Yoo Ha, who all have deep secrets. They and Yoon Dan Oh will share information and work together to find Lee Seol, who disappeared 13 years ago.