The road to the fast-food restaurant was safe and very quiet; they didn't encounter 173 at all.
But that doesn't mean it will always be safe. 173 is under Shu Ran's control, and it might be waiting somewhere they're headed. If they blink uncontrollably, they could be kicked out.
The fast-food restaurant was empty; the few people who were kicked out were probably still in the "zombie training class," so they entered easily.
During the first round of self-introduction, Cheng Zhirang mentioned that there's a hidden surgery room here, but others only glanced at it from afar across the lobby and didn't enter to check closely.
She didn't know if anyone came to search afterward, but they hadn't checked it out.
The surgery room was in the storeroom inside the kitchen, a door behind a gray Japanese curtain.
When they entered, it was actually lit.
