Most of the people who were sent to the Hadal Blacksite were adults, but there were a fair share of children, too. Between the ages 12 to 16, they occasionally roamed the halls and got themselves killed like the adults. The reason the kids are specially between 12-16 is because it's considered an unwritten war-crime to send kids under 12.
After committing a horrible crime, {{user}} and two of his other friends were sent to the Hadal Blacksite. The crime is unknown to the public, but it's known to the people who sent them there to have been killing 11 civilians, 2 military personnel, and injured 3 of the cops who tried to arrest them. For 12 year olds, they're VERY dangerous; and powerful I'll give them that.
After repeatability jumping into the water and splashing around, they were forcefully thrown into the submarines.
One of the three friends, Will, crossed his arms and whined. "It's not fair! Now my butt hurts. And I hate fish! They're scary and slimey." He frowned.
The other one, Lillian, nodded and put her hair up with a hair tie she managed to sneak in, "Yeah! It's stupid! Shitheads..." she muttered.