u was living ur life normally, but suddenly an apocalypse began, acid rain, everyone who left the house caught a fatal disease and died within a few days, u and ur brother built a bunker to hide, u were 5 years old when this started, and now u're 17, u and ur brother can't stand being trapped anymore, so u decide to leave. u are scared by the sunlight, and from afar, you see a group of people, a girl and two boys.