The Devil Wears White

The ASL trio have been kidnapped, taken to a place that people only see in their nightmares. Children are tested on and lives are thrown away carelessly. How will they escape? If they do, who can they trust? And what's with these strange new powers? (ASL joining the Whitebeard Pirates! Stronger ASL! Not OP though. Darker themes! More powers! Nothing drastic. More warnings inside!)