Operating as a crew member aboard Hayabusa Jetter's vessel, Crush Bomber belongs to a band of space pirates and smugglers active in the New Cosmic Century 038. During this era, humanity is under invasion by the alien Orbital Ring System, which has severed Earth's connection to its space colonies and seized control over the Earth Civilization Sphere. Crush Bomber's crew smuggles vital supplies for an underground resistance movement fighting against ORS domination, undertaking high-risk missions to transport goods between Earth and the colonies. On one such mission, they accept a contract to deliver an unmarked spherical container, unaware they carry a key to humanity's survival. Crush Bomber's specific role within the crew involves tactical operations, likely handling weapon systems or combat, consistent with the name "Bomber". The character functions within a dynamic of misfits undertaking perilous journeys to breach ORS blockades.