When the butler found Wen Haoxue, he didn't even mention his own last name, and in fact, Wen Haoxue didn't know why he was there.
Actually, Wen Haoxue had been in need of rest due to mental stress and had moved back to their small rented apartment with her mother. The butler brought someone over, saying they were there to inspect the heating system. With winter approaching, the Northern Region provided indoor heating differently than the South. Wen Haoxue didn't suspect anything, annoyed by the noise at home, she stepped out.
Even so, the butler still failed to achieve his goal, simply because Wen Haoxue was too sensitive. She turned back just as he tried to enter the room to inspect. Afterwards, Wen Haoxue took the jade pendant out with her.
After the failed attempt, the butler later discovered that Wen Haoxue not only returned the jade pendant to Manman but also told her everything.