In a fast-paced technological world, the only weapon left to a person is his own brain. Give up your identity. Erase it with hard training and replace it with the personality of the enemy. Penetrate the enemy camp and undermine it from the inside. Becoming a ghost is for the glory of the Republic and the woe of its enemies. What if one of the ghosts feels like a super-creature? The idea is not new, but it is still tempting... And then only ghosts are able to stand up for humanity. The battle of ghosts, invisible but deadly, decides the fate of the worlds...