On the night of my sister's first seven days, Liu Yingtang was stuffed into a sedan chair by her aunt and carried into the Zhenbei Hou Mansion. Marquis Xiao Jingheng lifted his hijab, glanced at her, said "like her", turned around and left. Liu Yingtang held the jade pendant left by her sister in her sleeve and said nothing. No one knew that she was reborn and came back with fragments of her sister's memories of the last month before her death. She saw the people her sister had met before she died, the words she had said, and the bowl of medicine that was brought into the room. Xiao Jingheng thought she was a substitute, and Liu Yingtang was happy to be a substitute. She just wanted to find out the cause of her sister's death and then leave this cold Hou Mansion far away. But that taciturn man pushed open her door at night when she was afraid of the dark. He said: "Don't be afraid, I will guard you." Liu Yingtang clenched the quilt tightly and did not dare to tell him. In the last scene she saw, her sister fell to the ground, and the man squatting down to smell her breath was wearing the same clothes as Xiao Jingheng.