Collapsing Front

Human technology reached its peak in the field of "gravity" a hundred years later. However, giant monsters like living rocks—Panxu—suddenly began to appear all over the world. They wreaked havoc, had nearly indestructible shells, and almost destroyed civilization. In order to fight against Panxu, mankind devoted all its efforts to build the magnificent humanoid mecha Terra, and finally built barriers to civilization in the remaining ten cities in the world. In this way, over the past three hundred years, one after another Pan Ruins appeared and were destroyed. The showdown between Pan Ruins and Terra has become a daily routine for all humans. In New Petersburg on the shores of Lake Baikal, the arrival of a special envoy broke the daily routine of the delivery girl and took her step by step towards the battlefield that determines the life and death of mankind...