Shi Mei naturally did not reveal the identity of Leng Zhuxin.
She only said to Shi Fei: "I don't know the true identity of that benefactor either. I only know that his friend was harmed by Shi Zhongkui, and he came to investigate the Shi Family for the sake of his friend.
As it happened, he snatched my soul back from Shi Zhongkui's hands.
Chapter 279