The Gekkoki

The Gekkoki (月光機（げっこうき) (also more commonly known as "Gekkokus") are an armed force of manned robots built by the Akebono Heavy Industries Production and are designed to keep out or dive off invading kaiju, similar to the Jaegers.

Origin of Group
It's unknown when exactly the Gekkokus were built, but it is presumed to be somewhere in the early 2000's. Their goal was too defend and enforce cities from giant monsters. Despite being produced rather cheaply and quickly and overall not that strong of robots, they are still very determined and courageous in the heat of battle. Despite being destroyed often, they are also easily repaired and can sent back into battle anytime. As of 2017, they have resurfaced and have become more common to defend places.

Units

 * Gekkoku 1 - The first one built, it is a green robot that can also transform into a tank-like vehicle and despite it's slow speed, it has excellent firepower and can grapple onto kaiju very well.
 * Gekkoku 2 - The second one built, it is a pinkish-orange robot that can emit a powerful electric voltage and is armed all over with machine guns.
 * Gekkoku 3 - The third one built, it is a yellow robot that unlike it's predecessors, it can walk on two legs instead of tank-like legs but is still rather slow moving. Is armed with four Somnium Beam Cannons.
 * Gekkoku 4 - The fourth one built, it is a red robot that is far faster than it's previous models and is equipped with a Somnium Blade and some Sonium Missiles that it can shoot out from it's back like a tank.
 * Gekkoku 5 - The fifth and final one built, it is a golden robot that is easily the strongest and most durable unit, as well as being the only one capable of flight. It is considered to be the unofficial leader of the Gekkoki.

Trivia

 * Their names mean "Moonlight Machine" in Japanese.
 * All of their designs are homages to Sci-Fi 1950's robots and wind-up toy robots.