When the world collapsed under the double blow of solar storms and microorganisms, a silent repairman drove a steel fortress that he had modified by himself, across two thousand kilometers of wasteland, just to find his sister who had been separated for three years.
When the lights of the Steel Ark illuminate the darkness of the wasteland, and when singing sounds for the first time in the carriage, you will understand: the strongest armor in the end of the world has never been steel plates, but each other.