The Wang Family knew that Qin Huai's identity was not ordinary. He had been in Wanning City for so many years and had never hidden anything from them.
He was afraid that the Wang Family would think that he had ulterior motives or that he was too scheming and did not want Ah Yu to befriend him again, so he told them everything.
He had also told Old Madam Wang about his situation in Duke Yong Manor and his current relationship with Empress Qin.
He had once suspected Ah Yu ridiculously and specially found the Hu Family Village. He also told Liu Shi about his conditioned reflexes from being assassinated repeatedly since he was young.
When Liu Shi heard this, she was really worried that Qin Huai's identity was too complicated and would affect Ah Yu. However, on second thought, her mother-in-law agreed, and Ah Yu had no objections. As a mother, why should she be an evil person?