Give them nature interference

Kimberly's soul was lost by now, she robotically did as told while her mind was lost in those words he said. 'I'm a Lu?!'

"Apparently, your mother worked at the Lu mansion some time ago. An accident happened between her and my father, so, you happened." He glanced at her widened eyes before he continued to work on his laptop, leaving her to slowly digest the revelation. 

When he researched the necklace, he found out it was a necklace given to Kimberly's grandmother by the matriarch of the Lu family for her hard work. Only hardworking servants get gifts from the Matriarch of the Lu family and it symbolizes respect, admiration, and also motivates other servants to work harder. Those servants given gifts would also get better privileges. Also, the gifts are like heirlooms for the servants' descendants and it also means an automatic good life for the servants when they retire as servants.