After-School Duty

For Kei Nimori, the day began like any other. Arriving at his elementary school, he noticed something peculiar: his name, along with that of an unfamiliar person, had been written on the classroom chalkboard. Brushing off the odd detail as nothing more than a strange prank, he went about his usual routine, unaware that this small anomaly was a harbinger of the nightmare to come. When darkness finally falls, Kei’s ordinary world shatters completely. He finds himself trapped within a twisted, alternate dimension of his own school—a nightmarish landscape littered with gruesome corpses and prowled by horrific monsters. With escape seemingly impossible and no one to rely on, his desperate battle for survival begins in earnest. Now surrounded by unspeakable horrors, Kei must summon every ounce of courage just to stay alive. His only hope is to endure the relentless onslaught long enough for a way out to reveal itself. But in a place where death lurks around every corner, the true question is whether he can keep fighting until flight becomes an option once again.