The protagonist, seen through the reader's eyes, is not a “protagonist” in the traditional sense, but an ordinary person who accidentally acquires a “dimensional agent terminal.” Recruited by the mysterious organization known as the Origin Point Observation Bureau, they are tasked with traveling through “narrative fragment worlds” made up of different novels, legends, myths, and even pieces of history. There, they must fix “worldline bugs” caused by various factors, such as transmigrators, reborn individuals, System holders, and interference from higher dimensions, and prevent these fragment worlds from collapsing and affecting the primary dimension of reality.