Heroism to the Sheep

The suspicious case in the airport terminal was the absence of people.

Easily imagining what an airport could be like would be its traffic, passengers and staff alike filling space. It could be congested or not, depending on the situation, but for there to not exist aside from Yotsuba and Nagisa from the outside─everything just turned more and more eerie. From the term "criminals", what could they possibly be expecting?

First, I could surmise there wouldn't be anyone left of individuals unrelated to the airport's works.

Even if there was an explosion, one which would scare the people off their boots, the staff wouldn't have readily ran and tended to the damage as fast as possible. In regards if they were trained not to panic, or otherwise naturally calm as people.

And yet, the terminal was too clear.

"Now, how do we reconstruct this chaos?" Yotsuba murmured to herself─quick to her wits to crack a pop culture reference.