Bai Zhengyi contacted Zhao Qiankun at an inappropriate time, just when it happened to be a taboo for Zhao, causing Zhao not to show any face and his dissatisfaction to be thoroughly exposed in his tone. Although Bai Zhengyi and Bai Yi appeared respectable and hypocritical, they were actually quite restrained with women, never behaving inappropriately.
At the moment, the two of them were preoccupied with the affairs of the research institute and hadn't considered what Zhao might be doing at this hour. They regarded Zhao as a suspect, and hearing his impatient voice, they subconsciously believed that Zhao must have had an ace up his sleeve, which is why he dared to be so arrogant in their presence, not even bothering to put on a facade.
As for Zhao's ace, it was naturally the evidence gathered from the research institute and Dr. Sun about the Bai Family's experiments using living subjects!