SIGMAHIAN

A planet located in the same system as Ezra's Oroboro. Sigmah is a place where beast-faced alienoids live. Recently, giant monsters have emerged from the deep entrails of the planet and have caused mass destruction on certain areas.

To combat this, the Defensive Sigamhian Force was created, often shortened as DS. They deploy giant mechanical warriors piloted by 2 designated sigmahians. The fights with these kaiju-like creatures have become famous across the cosmos and attracted a lot of tourism which gave he planet enough funds to be able to create walled regions in which now all the population live.
Mech fights are a planet-wide phenomenon and have caused it to become a strange sport within the natives of the planet.