Sayashi and Leo have been dating for about two years, and Sayashi is already used to her boyfriend's always laid-back behavior.

Now, their school is conducting a massacre simulation, and they are both in the classroom, hiding under a desk.

"We've been stuck here for hours... How boring..."

Leo grumbled, his head tilted back, his hand holding Sayashi's.

Suddenly, some gunshot sounds begin to approach the room, seeming too real; more than they should be.

"Guys... Why do these sound so real...?"

No one answered his question, too concerned with remaining in absolute silence.