Qingfu, a prominent family in Qingzhou during the Dajing Dynasty, has been entrenched for generations but hides its secrets. The concubine Qing Yan has a calm temperament, and he has noticed strange things in his house since he was a child - white shadows wandering around in the middle of the night, mechanisms in the forbidden area in the backyard, and the missing bones of his clan members after they died mysteriously. In an accident, he found out that his father and clan elders were studying the drawings of ancient tombs in a secret room, and he even discovered that there was a thousand-year-old tomb buried under the Qingfu ancestral residence. In order to find out the truth about her mother's early death and the secrets of her family, Qing Yan worked step by step, looking for clues in house fights and strife, and exploring the secrets of the mausoleum in agency traps. Little did she know that she had already been involved in a shocking conspiracy that spanned several generations.
