Drajas are indepentant alien/robot hybrids that are native to Drajia, the planet Dom, Stelana, and Eichorn visit.
They appear friendly at first, but it turns out to be an ambush and kidnap and keep Eichorn hostage, and the Drajas request ransom money, 165 Draja Bars.
The Drajas' weakness is chocolate and water.
Draja Bars are the official currency of Drajia.
They are like Gold bars, but are chrome, and have Ds ingraved in them.