So, when he later discovered that his wife had been injured during an early difficult delivery and couldn't get pregnant again, the husband didn't despise her.
He even secretly adopted a baby girl, claiming she was their child.
And this baby girl was Cousin Cao.
Mrs. Cao's cousin made her intentions very clear, "Cao Changsheng must marry my daughter, so he can rightfully call me 'mom'!"
Actually, even without the cousin making such a melodramatic statement, just the fact that she was Cao Changsheng's real mother meant that Mrs. Cao had to comply and endure her threats.
Of course, the cousin behaved quite reliably. Besides this matter, she never forced or blackmailed Mrs. Cao over the years.
Mrs. Cao knew that her cousin still thought the Cao Family was in a better situation and her son having the Cao surname was more promising.