Yoon Dan Oh had enjoyed a comfortable life as the beloved youngest daughter of a well-off family, but no longer. Now the family breadwinner, she runs the Ihwawon Inn. Current guests are scholars taking the civil service entrance exam in the 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 cooperate to find Lee Seol, who disappeared 13 years ago.