"Uncle Enlai, did you know that I have killed a person a few weeks ago?"
Rather than straightly answering Su Enlai's question, Shao Cheng has spoken in a different topic while simply perceiving the way that the middle-aged man's entire body has tense up all a sudden before swiftly glancing at his daughter's unsurprised expression causing his narrowed eyes to widened in absolute disbelief and astonishment.
It should be improper for Su Enlai to easily showed such an expression, especially regarding his rank as a General since one should be able to control and hide their emotions in order to deceive their enemies while hiding their weakness from being exploited.
However, Shao Cheng wasn't doubtful and surprise about Su Enlai's reactions since it was completely understandable why the older man was unable to hide it.