Siegel commands Siegel Laboratories, the sector's second-largest corporate entity, locked in fierce rivalry with the dominant industrial empire of Don Jirochou. He fiercely refuses Jirochou's attempt to acquire his company through a buyout. Siegel maintains an association with the central cyborg figure, Alice, though her involvement is intermittent and not exclusive to his operations. This alliance becomes prominent during strategic clashes with Don Jirochou, especially when corporate disputes escalate into direct conflict. In one notable confrontation, Siegel and Jirochou engage in a competitive clash of their respective cyborg technologies, with Siegel deploying Alice's capabilities against his rival's forces. Siegel's laboratory infrastructure and resources cement his position as a formidable industrial player. His interactions are defined by professional rivalry and calculated corporate maneuvering.