Behind Walls

When a wave of monsters suddenly brought chaos to the world, 15 years ago, amidst the turmoil caused by the Wamilos, an unknown group of creatures wreaked havoc on a sanctuary. Amidst the destruction, a young boy found himself tragically pierced in the chest. As emergency surgery was performed, something extraordinary occurred – his wound inexplicably mended within minutes, as if it had never been there. Miraculously, the virus that had invaded his body saved him from certain death, marking him as the first High Human to exist, forever altering the course of history.