It didn't take long for Red to wake up after hearing a muffled gunshot. Sensing that the block was in danger, he decided to wake Blond up as well but as expected of him, he was already awake. As the duo got up and turned around, observing their surroundings from a possible conflict, they were surprised that nothing was wrong.
Did I hear it wrong? No, if I did then Blond wouldn't have woken up. Red reasoned as he saw Blond shrug, gesturing that he didn't have any idea as well.
The mysterious gunshot was followed by a sound of struggle outside so Red immediately thought that there were other blocks fighting outside their safe house. Of course, it was a normal occurrence since they were in the Runners Survivors. That's why Red and Blond weren't the least bit alarmed upon hearing the struggle of workers and humanoids fighting each other to the death.
Clank clank clank...