People with mental disorders have been exploited in chemical experiments and tests due to being labelled by society as non-human. Some of these individuals were suicidal and ended up dying anyways. Others were born with their problems, whether they were physical or mental and didn't get the opportunity to live for long either. It was an unfair phenomenon that nobody could stop and so, those who were disordered were obliged to go straight to mental hospital where they will get treated, away from the harsh outside world, away from reality and far from their homes and families. It was a chance for them to recover and remain alive. However, most of them refused to live in such hostility and have chosen to end their lives instead of having to go through a whole lot of pain. But all of a sudden, a group has risen and took absolute control of the situation, turning those already troubled people into something more threatening , more dangerous, something that could completely wipe out all human life. Brainwashing them and playing with their emotions to get what they want out of them... it was the darkest, the most chaotic of times.