When Yao Zizhou heard Ming Liuyi's words, he fell silent.
After a moment of silence, Yao Zizhou said, "You already knew? Then why didn't you stop me when I said I wanted to acquire my real father-in-law's company?"
"You... changed your tune too quickly," Ming Liuyi said. "There wasn't any evidence back then. Even if I said it, no one would believe me."
Yao Zizhou looked at Ming Liuyi, and he said, "I believe you, but it's fine now. Let's see what they're here for. I'll help you solve it."
Cai Wenlun and Chen Xiaomei soon arrived. The housekeeper brought the two of them to the study. Yao Zizhou and Ming Liuyi were waiting for them. Cai Wenlun saw Ming Liuyi and started to evaluate her.
In the past, Cai Wenlun had never noticed that Ming Liuyi's appearance was indeed similar to the Cai family.
"Liuyi, can you tell us about your family background?" asked Chen Xiaomei straightaway. "What are your parents' names and how old are they?"
[1]This is just a play of words. Both Rixi and Liuyi's names are related to the last month of the year according to the olden day Chinese calendar.
I had a long and convoluted explanation prepared to interpret the meaning behind Liuyi and Rixi's names but... tl;dr
Basically, Liuyi's name probably means "reluctance to say goodbye near/close to summer" (not December, that's according to the Western calendar); and Rixi's name came from a poem, and the gist is that "time flows like water, once it passes, it's never coming back".
The author did not leave a note explaining this, so I tried my best...