Something Seems Wrong

By now, school life had started to settle into a normal rhythm. The hectic hustle and bustle at the beginning of the semester had all passed, and things had become just like an ordinary school.

It was during second period, in the middle of math class.

ㅡknock, knock, knock

“Base times height divided by 2... a trapezoid is the top base plus the bottom base times...”

I was so focused on class that, even though there was a visitor outside, the teacher kept going with the headache-inducing math lesson, so the boy by the door called out to her.

“Teacher, someone came to see you outside.”

“Huh? Really? Just a second..? Everyone, sit quietly and review what you've learned~”

Teacher Kim Hyunji sat the kids down in her usual gentle tone and went out through the front door, but of course that wouldn't work on a bunch of nosy little elementary-schoolers.

“What is it? Who is it?”

As the teacher's conversation dragged on, the kids in class started getting up one by one and walking over to the hallway window. They avoided the wall window with the frosted glass and crowded around the small window set into the sliding door, peering out into the hall...