C718 A Sensation

As Chen Dong left the laboratory, the sky outside was already dark.

Old Man had long heard that Chen Dong had developed the antidote and was very excited. When he heard that Chen Dong was leaving, he immediately went to the door and waited.

"Old Man?" Chen Dong saw Old Man, who was smiling, and immediately greeted him.

"Haha, good boy. You are indeed a hero. Not bad, not bad