A cargo ship that follows a storm. The Marine Corps' elite Glen Falcon corps is trying to prevent the collapse of the gravity furnace in order to save the world from destruction. However, Kikaijima, where the gravity furnace is located, has become a lawless zone just like in the Warring States period, where men drive giant robots to compete for victory. Lieutenant Yuki, the survivor of the unit, sees a genie there who turns everything into an enemy and does his best to destroy it.