C11 Chu Fei Felt Guilty

Chu Fei smiled. It seemed like he had guessed it right. Then, he exchanged for a box of penicillin on the system interface. Of course, in the old man's opinion, Chu Fei had just casually swiped something and it appeared in Chu Fei's hand.

The penicillin was a paper box wrapped with plastic protection. The penicillin itself was a small glass bottle packaging