The Notof Space Corps was a military faction consisting of an internally governed spacefleet and combattants. Along with the Adventurer's Guild, the Space Corps devised plans for and executed the Second and Third Great Expeditions. Notof Tech built the first antimatter engine for use in spaceflight, and continued to develop the technology for the fleet.

In Year 42, during the Third Great Expedition, notable admirals in the Space Corps, including No Name, Notof, and Chun Mun, moved to found the Avon Group. The Space Corps was incorporated as the Avon Group spacefleet, which was the largest spacefleet at the time.