Gakkou Gurashi!

A group of four girls, their advisor, and a puppy form a club dedicated to living in their school. Their devotion appears genuine, but an underlying cause may drive their actions. A hidden threat exists beyond the school's walls, having already affected one of the girls. As the others face a disturbing reality, the world beyond deteriorates due to an overwhelming force. Insanity might be the only way to survive. The story reveals unexpected events, emotional turmoil, and significant discoveries as it progresses.