Perhaps it was the short story " I Am a Wealthy Class ". After the female lead took over the company, her father brought back a real daughter. The female protagonist agreed to return what she deserved and gave her a black card. The real heiress tried to coerce the female protagonist into taking over the company. After the female protagonist withdrew her shares, she returned them to her father, which scared her father so much that his face turned pale. This novel was a modern romance novel about wealthy families. The plot was relatively short, but it was very interesting.