Once traveling through time, the history student became the down-and-out maid Su Tang who was bullied by everyone in the Hou Mansion, and faced the prospect of being betrayed or dying tragically. She relied on her agility and knowledge to make progress step by step, but found that she had already been taken under the wing of the cold-faced Marquis Gu Xuanqing. The house is undercurrent and the court is in turmoil. As the jealousy of cousin Song Hengzhi, the old case pursued by counselor Pei Yan emerges, and the secrets guarded by Aunt Jiang are gradually revealed, Su Tang realizes that the truth about his time travel is far more connected to the powerful Yongning Houfu than imagined.
