Episode 4 recap: Prince Wuji came to find Mr. Li.

After Tang Xiaolu settled her parents, Prince Wuji mentioned that the maid had been poisoned and appeared to have died two days ago. Prince Wuji believed that the person behind this incident was likely targeting Tang Xiaolu, but she escaped because she wasn't present. Prince Wuji asked Tang Xiaolu if she had any enemies or if she had offended anyone in her business dealings. Tang Xiaolu explained that she grew up in Bu Village, where her parents loved her dearly, but she didn't have any enemies.

A servant quickly pulled Prince Wuji outside, feeling that Tang Xiaolu was already distressed enough, and Prince Wuji's questions seemed to imply that they had brought this disaster upon themselves. Prince Wuji felt uncomfortable and left first. Tang Xiaolu happened to see this and remembered that Prince Wuji had protected her, so she went to check on him.

Prince Wuji had injured his shoulder, and Tang Xiaolu came over to help him extract the poison. She didn't want Prince Wuji to suffer the same fate as her parents. Prince Wuji went to find Mr. Li, showing him the poison. Mr. Li was also surprised and mentioned that the person skilled in this type of poison had already died. Prince Wuji asked if Mr. Li knew about the Tang Family Cloth Manor, but Mr. Li replied that he didn't.

Prince Wuji expressed his desire to obtain all the files related to this poison.