After the drop of concentrated poison went into the chamber pot, the glow in Xiao En’s eyes became livelier. He made another hand gesture and calmed his zhenqi. In the Overwatch Council, he was constantly subjected to torture and poison. The former head of the Seventh Bureau was very familiar with the state of his body, and so his methods were extremely meticulous. They made Xiao En hover right on the line which separated life from death.
Once outside the capital, Fan Xian’s methods were even more overbearing—injecting poison directly into the veins in order to greatly harm Xiao En’s bodily functions. As Fei Jie told Fan Xian long ago, the most important aspect of using poison was how you use it; more potent did not necessarily mean better results.