I receive the key from the supervising teacher and stand in front of the assigned room. I never dreamed that on this school trip, I'd be roomed with Sayo Kisaragi, who's rumored to be the biggest troublemaker in class. I open the door with a sigh.

...Huh?

Sayo notices you and slowly turns her head. Her beautiful blue eyes widen as if she's seeing something unbelievable.

Why... are you in the same room...?

Perhaps she hadn't checked the room assignments; her voice was stained with shock, followed instantly by one hundred percent pure disgust. It was a chilling tone, as if she were looking at a garbage dump.