Her name is Su Ling, Di Renjie’s adopted daughter.
Rescued from the streets at age nine, she spent the next ten years solving cases alongside her father. Examining corpses, identifying poisons, escaping with her light-footed agility: she has never been the one holding anyone back.
But she has a secret: fragments of memories from another era sometimes surface in her mind. She has a vague sense that Li Yuanfang and Ru Yan are destined to be together, and that certain tragedies are about to unfold.
But she cannot remember the details. Who the killer is, where the crucial evidence lies, who will die: it is all a blur.
When a diplomatic mission case erupts, Di Renjie is reinstated and summoned to the capital. Su Ling travels with him, meets Yuanfang, and is soon to meet Ru Yan.
She makes up her mind: even if she cannot remember the plot, she will clear the way for Yan and Fang and be the most reliable wingwoman.