People believe that the end of the world can happen in a single moment. But what if this moment extends for a century? Riots in Seoul lead to the urgent evacuation of a boy who has never seen the world, except for laboratory walls in the basements of the Russian Embassy . Will he be able to grow up in a rapidly changing world, where the value of life drops sharply? Will we survive? Will we remain unchanged? Will we transfer habits and vices to this new world? Losing childhood, do we lose ourselves? The cycle includes all the books specified in the cycle. You can read it regardless of the order, except for the order within the series .. Those who read all the books will notice the clues, find hidden meanings and meet already familiar characters where for others there will be only random passers-by.