In a world ruled by magic, a child is born at the exact moment all magic disappears. Branded a devil and exiled by his own kingdom, Null grows up believing he is powerless—until the truth reveals itself. Within two meters of him, all supernatural forces collapse. His ability, AXIOM, rejects anything that defies real-world logic, creating a domain where only reality can exist.

After tragedy destroys his home, Null begins a journey with Leo, a mysterious boy who falls from the sky and claims no origin within their world. Soon, strange entities calling reality a “system” label them as errors threatening existence itself. As kingdoms fear him and unseen observers manipulate events from beyond reality, Null must uncover why he exists and what truth his power protects.

Because some truths cannot be escaped—and AXIOM can never be turned off.