When I Kill Myself

Due to the high suicide rate among youths in Japan, the government implements experiments to uncover the causes behind the high suicide rate. Children are selected and placed in a YSC facility under constant surveillance. At the age of 10, the children are then give a detonator with a red switch. They are told if they press the switch they will die immediately. Most of the children under the experiment, eventually presses the switch and dies. Only six of them survive after 7 years, what will happen to them?