In a world bound by an invisible “Sequence,” humanity’s fate, social hierarchy, and even the survival of civilization all depend on climbing the Sequence. “Zero,” a low-level sanitation worker who cares about nothing yet does everything to perfection, is an oddball who accidentally activates the legendary “Primordial Sequence” and becomes the only “Sequence Breaker.” He seeks neither power nor pleasure, viewing the “climb” as a task that must be completed perfectly. His journey begins in a forgotten corner and ultimately shakes the foundations of civilization, revealing the ultimate truth behind the Sequence and the survival or destruction of the universe. With his uniquely emotionless logic, he delivers the final verdict on the fate of the world.