Shen Qingdai is the most outstanding successor of Yaowang Valley. Before his death, his master only left one sentence: Go to the Zhenbei Hou Mansion to investigate the old case. So she became the bride of the Hou family. The groom, Xiao Jingheng, was as cold as ice, the cousin in the house had a knife hidden in her smile, and the tonics sent from the kitchen were laced with chronic poison. Shen Qingdai put down the medicine bowl and smiled. She was not afraid of poison, but she was afraid of not being able to find out the cause of her master's death. But the water in the Marquis's Mansion was deeper than she thought. The head of the Taiyuan Hospital, the female owner of Huichun Hall, and even the cold-faced Marquis all had secrets. Shen Qingdai opened the account book left by her master, and it read on the first page: Zhenbei Hou Mansion owes Yaowang Gu his life.
