For years after the discovery of intelligent life on Europa, Jupiter's icy moon, the relationship between humans and natives remained friendly. In fact, a primitive, but profitable, form of trade was established between the two races.

Then, without warning or clear cause, a subgroup of aliens began launching attacks during the trades.

Seeing its profit margins shrink quickly, the Okabe Space Trade, a Japanese company that holds the trade monopoly in Europa, hired Major Denis Vassiliev, a veteran of the GRU during the Second Sino-Russian War, to put an end to the conflict. Will he be able to enter the alien mind and win the war?