In the Mystic Frontier, a dangerous region where humans and monsters struggle for survival under the principle of survival of the fittest, a young warrior named Lucciola Lunatria wields her silver claws to tear through monsters in hopes of bringing peace through violence. Her approach changes dramatically when she encounters Bilqis Draco, a first-rate merchant from the Mystic Frontier Trading Company. Through their meeting, Lucciola discovers that conflict resolution and true harmony can be achieved not solely through combat, but through negotiation, commerce, and strategic brokering.

The story follows these two protagonists as they travel across the Mystic Frontier together. Lucciola, initially a hero focused on monster extermination, gradually learns to apply the principles of trade to solve problems that violence alone could not fix. Bilqis, as an experienced merchant, guides her through this new worldview. Their journey explores the tension between the frontier's harsh law of nature and the possibility of building a more peaceful coexistence through economic and diplomatic means.

The manga is structured as a complete narrative of 32 chapters collected across 4 volumes. The early chapters establish the central philosophical shift in Lucciolas perspective. Mid-story arcs likely involve the duo applying their combined skills to specific frontier crises, with Bilqis handling negotiations while Lucciola provides protection and learns the subtleties of mercantile solutions. The final chapters bring the story to a conclusion, though the series ended earlier than planned due to sales performance. The work is authored by Kachou Hashimoto.