Lin Jianlu, a modern cultural relic restorer, transformed into the real daughter of the Hou family who was maliciously exchanged. Faced with the fake daughter who occupies the magpie's nest and the prejudiced family, she does not fight or cry, but only shows a pair of insightful eyes that can "learn from the past and understand the present". Destroying counterfeit goods, picking up rare treasures, repairing national treasures, and transforming from an abandoned daughter of a marquis into a guest of the royal family. When the cold-faced inspector fell in love with her, and the young master of a century-old family regarded her as his close friend, she just smiled: My world has never been about the back house.