Si Ren was very familiar with the properties of the Longevity Pill, so he could easily tell whether what Xu Bin said was true or false.
As for Zhao Ziying, although she had never heard of the Longevity Pill, she could determine the truth by examining the other person's physical condition.
Xu Bin had indeed ingested the Longevity Pill, and he had taken it willingly, fully aware of its side effects.
Chapter 1451