Pulled into an infinite game within a bewildering structure, humanity confronts extinction. A fog-shrouded realm teems with monsters, reducing survivors to insignificant prey. Sealed doors form humanity's only defense against slaughter. Personal chambers remain the sole refuge. Rover enters this apocalyptic nightmare holding a precious advantage: the SSS-ranked Omni Mechanic class. His extraordinary [Relax] ability generates Omni Points—unlimited resources to upgrade anything into something infinitely superior. Each enhancement multiplies his survival prospects. His gathered harem transforms into his fortress. These devoted wives defend his tower against relentless monster waves while generating exponential Omni Points. Combined, their strength surpasses all expectations. What begins as basic defenses evolves into legend. [Rotted Wooden Door] ascends to [Immortal Divine Gate]. [Wooden Bolt Turret] transforms into [Radiant Turret]. [Zombie Virus] becomes [Awakening Serum]. Common zombies transcend into [Hell Lords]. His harem ascends into unstoppable warriors. While others drown in despair and anguish, Rover flourishes. He builds a luxurious empire with his beloved harem, thriving in a world engineered for human annihilation—proving that even infinite games can become playgrounds for the exceptional.