The planet Lythyl is brutal in both its environment and what passes for its civilization. The volcanic activity and sun scorched surface forces most life underground, though some choose to live above ground despite the hardships. Below, the strong rule the weak within a population of masters and slaves. Amid the almost constant fights for life, many individuals band together for strength in numbers. On Lythyl, even the serial killers group together.

It was on this planet where the father of Karate Kid turned to crime. It also the homeplanet from ex-legion academy student Myg, the second Karate Kid.