Others might not have caught what happened just now but Yun Jian saw it clearly, so she knew what was going on over there.
She was not surprised since Qing You's poison administration was stealthy.
When Xu Linbo approached them just now, Qing You had silently poisoned him with a drug that made one terribly itchy and made the victim want to scratch themselves incessantly. If the antidote was not provided, one could even scratch the skin off their body.
Other than Yun Jian, however, no one saw what happened because as mentioned, Qing You could poison someone faster than the human eye could visibly perceive.
She was not called Lady Venom for nothing!
That said, Yun Jian was able to see her administering the poison.
"Hmph, yap all he wants, how dare he slander my Sister Jian! He should have a taste of tearing his own skin apart."
