C1101 Falsely True
If any kind of green liquid could have the effect of a T-virus antidote, then he just needed to inject some light green water into the patient.
He quickly found something similar in the Xiao Family Castle. It was the paint that Xiao Mingxi used to draw and there was a large jar of 'antidote' in the water.
Li Yun sent out the news that he was in the middle of creating the T-virus antidote