Liu Ruyan is an unpopular concubine in the Hou family. Her mother died young and she lives under the roof of others. Under the oppression of her aunt and the calculations of her sisters, she survived step by step and carefully. In order to change her destiny, she had to get involved in the power struggle in the Hou Mansion. She used her talents and methods to gradually win the recognition of everyone in the Hou family, and eventually became the mistress of the house. In the process of guarding the Hou Mansion, she not only had to deal with internal conspiracies and conspiracies, but also faced external crises and challenges. She knew and fell in love with Gu Jingyuan, the eldest son of the Hou Mansion, and worked hand in hand to finally resolve the crisis in the Hou Mansion and realize her own self-worth.