The compelling and long-awaited new action epic from ONE, the author of One-Punch Man and Mob Psycho 100! Humanity cowers in fear in a world ruled by demons.but a brigade of humanity's 47 strongest heroes band together in a final attempt to wrest the world back!

Centuries ago, humanity’s natural enemy, Demons, invaded the world and defeated humanity. The Great Demon Lord and his generals have since dominated the world, while the human race lives on in fear. In desperation, a group of 47 people gathered from around the world undertake a last-ditch effort to save humanity from ultimate annihilation. These heroes swear to defeat the demon army and win back humanity’s freedom, but they have no idea the desperate measures that this battle will drive them to embrace.