The world has gone crazy, and nothing can be done about it. A mysterious disaster has cut off the city from the rest of the world, and the survivors cannot change anything. There is a war of extermination in which people are fighting against mutant rats that have grown to the size of a man and learned to use a machine gun. This story began when a deaf sniper, hitting the target with any weapon, in any situation, missed and missed the rat, who can play the flute and charms people with her music. At first the two tried to kill each other. Then... they started talking. Maybe they are the last chance for a new world?