Shen Wan travels into a book and becomes the most wicked woman in the capital. She does not find a man when she goes out, but instead brings back a soft and cute young lord. Who would have thought that the little one's father is none other than the infamous living Yama—Chief Minister Fu Yan, who is said to kill without blinking an eye! To save her life, Shen Wan is forced to move into the Chief Minister's residence. She excels at caring for the child, archery, horse riding, and treating illnesses, turning the solemn and frigid residence upside down. Yet gradually she begins to wonder: it is one thing for the little one to call her Mother every day, but why does his father look at her with eyes that grow increasingly ambiguous!