Perched atop a towering skyrise in a desolate city plagued by a toxic weather anomaly, the "Obscura Highrise" looms ominously from above. Volunteers, donning gas masks for protection, frequently go missing here, drawn by the call to uncover the source of this deadly phenomenon. Once thriving, the city now suffers from a containment breach at a secret laboratory, leaking an experimental gas into its fabric. The gas intensifies as one descends, Becoming increasingly potent. Causing a visual spectrum shift that reveals hidden aspects in ultraviolet and infrared while obscuring the familiar. Reality warps, with walls appearing transparent and solid ground feeling like quicksand, creating an ever-shifting, unreliable terrain and decent. Electrical interference adds to the danger, leading some to believe this chaos was orchestrated by the fabled "Phantom Port," a clandestine hub using mist-cloaked technology to guide humanity’s future from the shadows.