44th Period Survival Class

Summary

One day, mysterious holes called “Black Circles” began appearing all over the world. Their origin and contents were unknown—no one who entered ever came back. When a Black Circle appeared at Do-yoon’s school, it grew larger and larger until it swallowed the entire building, dragging Do-yoon and most of his classmates inside. Can they find a way out and escape the Black Circle, or will they be lost in the void forever?