In fact, she had nothing against Su Yang. To be more accurate, she had nothing against Su Yang before he interfered with the company.
Initially, she was similar to Tan Mei. They both thought that changing a boss would be a good thing for the management company. After all, no matter how bad a boss was, he was still better than Ying Shao.
Hence, she was friendly towards Su Yang at the start.
However, she did not expect that the foreigner would directly interfere with the company's matters before he even arrived at the company. Moreover, she was the one in charge of the company's matters and had the artist film his show.
This really touched Chu Hong's nerve.
She was the kind of person who had a strong desire for control and power. She could accept that her boss did not know anything, but she could not accept her boss interfering in her work!