In an imaginary dynasty, the legitimate daughter of the Marquis of Yongning was secretly exchanged when she was young. Shen Qingci, a country girl, crawled and rolled in the mud for sixteen years, developing a tough character and survival wisdom. But Su Lingwei, who was supposed to be a peasant girl, grew up in the royal family's rich clothes and fine food, and became a gentle lady envied by everyone in the capital. On the eve of the wedding ceremony, the truth about the mistake was unexpectedly exposed, and Shen Qingci was taken back to the Hou Mansion to recognize his ancestor. Faced with the contempt and estrangement of everyone in the Hou Mansion, Su Lingwei's false kindness and secret interference, and the secret involvement of the court forces, Shen Qingci did not feel sorry for himself. She faded away from the dust of the countryside, dismantled conspiracies with extraordinary courage, resolved crises with wisdom, gained a foothold in the backyard of the deep house, and even found a foothold in the undercurrent of the court. She doesn't love the prosperity that doesn't belong to her, but wants to take back everything that should belong to her; she doesn't fight with villains, but lets all the scheming people reap the consequences. When the country style collides with the beauty of the Hou Mansion, and when the real and fake legitimate daughters compete on the same stage, Shen Qingci proves with his strength that blood is never the foundation, and his own edge is the strongest backer. This is a game about identity, dignity and choice. It is also a story about a woman who sticks to her true heart and makes a comeback in troubled times.