Everyone thought that Jin Shi, who was already in his forties, should find a partner and carry on his lineage.
But what to do, he's gay.
He has no interest in women.
Then, he could only find someone with a child. He would provide financial support, thus solving the problem once and for all.
Enter Mu Xin, a divorcee with a daughter. She met all of Jin Shi's requirements.
Why a daughter and not a son?
With Jin Shi's vast wealth that could scare people away, if he had a stepson, the company and money would certainly belong to the stepson in the future.
But with a daughter, he could choose a promising son-in-law that he approves of to marry his stepdaughter, then let his son-in-law inherit the company.
Sounds reasonable in this context.
This is especially proven by Jin Shi's willingness to marry a woman who had an affair during her engagement.
Many people were curious about who Mu Xin's ex-husband was?