The RMS-009 Septem is a mass production high mobility mobile suit developed by the Space Revolutionary Army (SRA) for space combat. The Septem shares similarities with the RMS-006 Jenice, this is due to the fact that the Septem is an enhanced version of the Jenice. One prominent improvement of the Septem over the Jenice is the addition of large thrusters on the Septem which are installed on the mobile suit's legs. These large thrusters allowed the Septem to achieve higher mobility and performance than the Jenice.
For combat on Earth, a ground variant of the Septem was created by the SRA known as the RMS-009G Septem Kai. This ground combat variant of the Septem is identical to the original Septem visually aside from a different color scheme, however the Septem Kai's parts and systems are modified for combat under gravity.
The Septem's primary weapon is its giant bazooka which possesses high firepower. For additional firepower, the Septem is also equipped with 50mm torso mounted machine guns.
The Septem can optionally be equipped with a 100mm machine gun which fires physical rounds and possesses less firepower than the Septem's giant bazooka.