Orbments (導力器(オーブメント)) are mechanical devices which operate by using what is known as orbal energy. A variety of effects can be produced depending on their structure and the type of quartz installed. Although it was only during the Orbal Revolution in S.1150 that these devices were invented, they quickly became an integral part in all facets of life, e.g. lights, heaters, domestic devices, weapons, magic, and airships.