" Hundred " - the only weapon,which can withstand the mysterious life forms that visit Earth - " Savage ". The protagonist, Kisaragi Hayato, aims to become a " martial arts" using these weapons. He managed to get into the " Little Garden " Naval Academy. However... the phrase " Finally, we met, Hayato! ", The flying from the lips of a stranger,that would be a roommate, Emil Crossford. Moreover, immediately after the ceremony proceeds, it is to a duel, " the strongest martial arts," the academy - "The Queen" Claire Harvey! His life starts here and now!