As a long period of peace gradually gives way, countless wars erupt around the world. The most prominent among those fueling them are dissatisfied high school students with rebellious tendencies. Faced with the imminent threat of a world war, an international coalition makes a decision: to ease the mounting pressure, the next generation about to enter society, high school students, will be sealed inside a perfectly recreated world and experience the true brutality of war... But the one controlling everything is not the international coalition. Someone has secretly altered the program, making this killing ground even more bloody and savage...
