During a military exercise, one of the tanks was transported into another world. Its crew was forced to do their best to survive in the world they know nothing about while having only their tank and their companions. Will 3 tank aces be able to handle the war-torn world or will they become one of its victims? Will they become the ones who run from the war, or become its champions? What can a tank do against magic and mythical beasts? All of these answers you might find here.