That Morning

The Classroom That Shook

Frightened Eyes

The Confined World

The Bread Which Bring Insanity

The Challenges of Class 6-3

The Grave of 862 People

The Journey of Death

The Mother's Wish

The Screams from Within the Wall

Sacrifice

One Leaf from a Tree

Out of nowhere, an entire school vanishes, leaving nothing but a hole in the ground. While parents mourn and authorities investigate, the students and teachers find themselves not dead but stranded in a terrifying wasteland where they must fight to survive.
 
(Source: Viz Media)
 
Note: Contains a bonus short story "The Wish"