Kaiser-G emerges as a formidable antagonistic force clashing with the Machine Robo Rescue team, orchestrating large-scale disasters and deploying combat-ready robotic units. The group ensnares individuals through recruitment and brainwashing, notably Jay—a former agent entangled with Kaiser-G before his MRR affiliation. Jay’s history with the organization originates in infancy, when he survived a catastrophic space exploration accident, reached Earth via escape pod, and was seized by Kaiser-G. Subjected to relentless conditioning, he was molded into a warrior advancing their destructive agenda.

Kaiser-G’s schemes escalate from deploying advanced robots like the V-Stealth Robo, designed to sabotage MRR missions, to triggering a planet-endangering disaster mechanism named "Kaiser-G" in episode 48. This crisis spurs a unified counter-response from MRR teams, compelling them to merge resources and tactics.

Jay’s defection becomes a pivotal turning point. After breaking free from brainwashing, he joins the MRR Stealth team, leveraging insider knowledge of Kaiser-G’s strategies and technology to thwart their assaults. The organization’s objectives center on undermining rescue operations and asserting control through engineered chaos, though their leadership structure remains undisclosed. While Jay’s redemption aids in dismantling Kaiser-G’s dominance, lingering factions persist, perpetuating challenges for the MRR. The narrative underscores their relentless conflict and Jay’s transformative journey from weaponized asset to key ally.