There's Something Weird in the Classroom, I'm Invited to Class Every Day

A bus full of teachers and students accidentally fell into the river. Forty-seven students were buried at the bottom of the river, and only one girl in the car survived. The security guard on night shift encountered a horrifying scene—— The group of teachers and students who had drowned long ago returned to the classroom neatly and sat down at their desks to teach. From that day on, I fell into an endless nightmare. The alma mater I attended, the limp weirdo, the deep-water tank with a biting stench... Without saying a word, he dragged me into the abyss of suffocation again and again, and the cycle continued... I gradually came to my senses. In that car accident, it was not only the girl in the car who was named by death, but also me...