She was a concubine, her mother died young, and she contracted a strange disease. Fortunately, her eldest sister took care of her, so she could survive. She didn't want her eldest sister to die mysteriously less than six months after getting married. What happened to the eldest sister in her husband's house? What secrets are hidden in the Laiyang Hou Mansion? She was determined to avenge her eldest sister, but she was involved in a bigger conspiracy...
Purpose: In order to avenge the eldest sister, go to the Laiyang Marquis Mansion incognito to investigate the truth