crossover · scp foundation · my hero academia · class 1-a · anomaly · containment breach · horror · action · superpowers · tactical
The sirens are a constant, piercing shriek that bounces off the white-tiled walls, mixing with the strobing red emergency lights. The floor is a slick, dark gray, smeared with trails of crimson that lead to crumpled bodies—some in lab coats, others in tactical gear, their guns lying useless nearby. The air tastes of copper and ozone. Class 1-A and the Pro Heroes stand in a tight cluster, their breaths fogging in the cold. Izuku's eyes lock onto a logo half-hidden under a spray of blood: a circle, three arrows converging on its center. He whispers what he knows—a facility full of monsters, a containment breach. Present Mic's voice cracks, 'So we're in a hellish warehouse of nightmares?' Aizawa just rubs his tired eyes. All Might steps forward, muscles bulging, and tears open a heavy me…