Obmunjalae’s Home Base is a massive structure (136 vertical meters between the tops of the arches) that serves as the hangar for the titular vessel. It also contains the foundries that forged the components of the Obmunjalae’s structure, and the equipment used to put those components together.

Along the sides of the base are four rows of buildings. Industrial sections are on the outside, and residential on the inside. Terraced balconies of the residential sections can be seen on the left side of the image.