Decornum is vast and its abundant resources could allow the remnants of the Japanese colony ships to lay the foundations for a new civilization... If only a warrior sect of the indigenous Aliens, whose very physiology is capable of creating and directing tremendous energy, were not violently opposed to the human expansion into their territory. Out of options, running low on people and equipment, the colony is forced to withdraw to the moon, leaving behind on the planet a few brave scouts, such as Keïto, whose mission is to gather vital information for their survival.