Wang Shuxian was born into a famous family, but her parents were involved in a "literary prison" and their family fell into ruin. She took the remaining manuscripts and her young brother with her and hid in the capital anonymously. The "Moxiang Pavilion" she runs appears to be a shop selling the four treasures of the study, but in fact it is a gathering place for the capital's intelligence. While making friends with powerful people by repairing ancient books, she secretly collected evidence, vowing to clear her family's grievances.