Strange - DHMIS au

Mr. Red liked to think he was a good enough teacher. His class turned out decent grades, participated when he needed them to, and usually didn't speak out of turn, which was something hard to achieve with primary school kids.

But recently, one child had started to worry him. The normally happy and curious boy's grades started to drop in his weekly tests, and he saw him more often than not sitting out of games at recess.
He had ruled out bullying, as the other kids would offer to play with him all the time, so he was beginning to wonder what had happened. And when the boy stopped turning in his homework, he couldn't let it go without some clarity.

So he organised a meeting with the kid's parents. What could go wrong?

(Cover art is mine and how I imagine the characters look in this story!)