In a world where swords and magic are gradually giving way to firearms and machinery, the aftermath of a continent-spanning war has left the empire’s roads in disarray. The Imperial Geographic Institute dispatches surveyors to reconstruct accurate maps by locating and updating roadside signposts that were destroyed or displaced during the conflict. Among these surveyors is Nonoa, an elven research assistant who handles fieldwork alongside her human partner, Kago. Nonoa is an expert rider of her cherished motorcycle and a skilled archer, wielding a magic bow to fend off the monsters and hostile spirits that now infest the once‑safe highways.

Their daily mission is straightforward but perilous: travel the war‑ravaged roads, find every standing or fallen milestone, record its location, and ensure the empire’s cartographic records reflect the changed landscape. Along the way they repel monster attacks, navigate treacherous terrain, and uncover remnants of the war. The pair’s easygoing banter and contrasting personalities—Nonoa’s energetic, impulsive nature against Kago’s more grounded, rugged demeanor—fuel the story’s lighthearted comedy, even as they face dangerous encounters.

As the series progresses, the scope of their work expands beyond routine surveying. A major story arc sends them to the remote border region of Ritchi, a frontier outpost that has gone silent. En route they rescue a knight named Anzu, who is fleeing demon‑kind pursuers. Anzu is later revealed to be a princess, and after the demon threat in Ritchi is quelled, she accompanies Nonoa and Kago back to the imperial capital. There, Anzu becomes a trainee surveyor, joining the team as a junior member. This development introduces new dynamics, as the group now includes a knight‑turned‑apprentice who must learn the surveying trade.

Another notable arc takes place in a colossal forest of giant trees, where the pair must navigate an environment that tests both their motorcycle skills and combat abilities. Throughout these adventures, the story maintains a road‑movie–like structure: each journey to a new location brings fresh landscapes, hidden dangers, and the gradual restoration of order to a land still healing from war. The setting—a fantasy world in the midst of an industrial and technological transition—provides a backdrop where old magic coexists with emerging mechanical innovation, and where the simple act of mapping a road becomes a small but vital step in rebuilding a fractured empire.