C381 Blood Sample

The door was opened from the outside.

Some of the survivors had been here for a long time. Whenever they heard the door open, they would subconsciously tremble, because every time the other party entered, one or two of them would die.

Su Mu glanced over and saw that the young man had already changed into a white coat. He took out a syringe from the table beside him and walked towards Su Mu