C392 Barrier

Dr. Qiao patted me, signalling for me to leave quickly.

Returning to the ward, Qiao Si laid on the bed without caring about anything else.

But Dr. Qiao did not stay idle. He took out a pile of copper coins and a circle of red thread, and put the copper coins into the red thread. Then, he asked me to help him out.

After that, he placed a paper boat in every corner of the room