C922 Come out

These things put Zhang Cheng and Qu Jiujiu in a dilemma. Although they had developed a new drug, no volunteers came to accept the experiment.

Actually, this was understandable. After all, there were already examples of how no one wanted to risk their lives to become that pitiful little mouse anymore.

They didn't want to gamble with their lives. They didn't know if it would be like last time