Dark Sky

When the sky turns dark, it means there will be a disaster. But for Allan the sky was always dark. His psychopath brother just let him isolate himself from society. But their tragedy just let him be a hero when the world needs a savior.
How can he do that?
This story contains sexuality, mental disorders, crimes, and how bad reality affects the society.
Can Allan handle all of it and make a better future?
I know it's impossible but he can make it possible