I Slimmed Down to Capture The CEO

Shen Nansheng comes back to her desk at Fu Yanci's company and nobody there recognizes her. She is pregnant, and the pregnancy has taken most of her weight off. Fu Yanci is at that point spending a fortune to find a woman he spent one night with and has not been able to trace since. The woman is Shen Nansheng. She had been his secretary, heavy enough that people looked straight past her, and after a night of drinking she had ended up in bed with him and run off in a panic. She keeps quiet about it. The two of them misread each other over and over while his search goes on. Her ex-boyfriend, who used to live off her, turns up again and will not leave her alone, and Fu Yanci keeps him away without telling her why.