C339 He Didn't Come to the Treasure Hall for No Reason

Because the child's condition was not very optimistic, even though Lu Yunxi had been providing the serum with antibodies here.

Xi Yechen walked out and sat silently in the corridor for a long time. After that, he got up and went to the research room.

"Director Xi."

"How's the progress?"

" The whole team is working overtime after breaking through that difficult problem last time