Inside the laboratory.
After discussing the handover arrangements.
Xu Yun turned off the Penguin group chat and began preparing the cockroach bait for practical use.
About half an hour later.
Ding-dong—
Accompanied by a buzz, a WeChat notification sound went off.
Xu Yun picked up his phone, and the sender was Chang Licheng, the class monitor of Applied Physics Class 2.
He hurriedly replied with a quick 'Hold on,' then grabbed the prepared medicine box and took the elevator down.
Five minutes later, Xu Yun walked out from the main entrance of the Medical Center building.
"God Xu! Over here!"
Just as he stepped out, a burly male student rushed up to him.
The boy was around six-foot-one, with a very reliable square-shaped face, and his sparse hairline indicated his grades were likely good.
