War has broken out and no one is safe outside the underground bunkers they call home. Old cities that were full of joy and music and expression are now battlefields where the only music to people's ears is the sound of sirens from the occasional ambulance driving by. Vows will be made, hearts will be broken, promises will break, and some things are inescapable, but follow our protagonists as they try their best to make it to the end of the war without, you know, dying.