Episode 15 recap: Li Ziyi finds the flower-seller old woman.

Prince Wuji feels that Li Ziyi was unusually gentle yesterday, and he wasn't used to it. Li Ziyi wonders if he should be more ruthless towards Prince Wuji. Lin Mier comes over and says that she has information about the flower-seller old woman that Li Ziyi asked her to investigate. It turns out that the old woman used to practice witchcraft and fortune-telling instead of selling flowers, but now she looks sickly and near death.

Li Ziyi originally intended to kiss Prince Wuji, but someone knocks on the door from outside, so Li Ziyi has to come out first. Lin Mier informs Li Ziyi that the old woman's name is Xu Apo and she has news for him. She used to practice witchcraft and fortune-telling instead of selling flowers, but now she looks pale and doesn't have much time left. Li Ziyi hurries over to see her. He wants to know the truth about what happened years ago. Xu Apo reveals that three years ago, the emperor was seriously ill, and the empress covered everything up. Li Ziyi was supposed to stand by their side, but instead, he was thrown into a mass grave. Li Ziyi's older brother came and rescued him, bringing him to Xu Apo for treatment.

Although the injuries Li Ziyi sustained at the time were not fatal, he refused to speak despite recovering. Li Ziyi's brother visits Xu Apo and asks her to help erase Li Ziyi's memories, so he no longer has to suffer. Xu Apo uses a floral bracelet to erase Li Ziyi's memories, and Li Ziyi's brother finds the Tang couple to act as Li Ziyi's parents.

Xu Apo returns the floral bracelet to Li Ziyi, believing that he is now ready to face what lies ahead. Li Ziyi wants to know who was responsible for what happened years ago, but Xu Apo has already passed away.