Lucciola to Makyou no Shoukanin

The Mystic Frontier is a region where humans and monsters coexist in the sense that they share the common principle of "survival of the fittest." In this land filled with strife, the young hero Lucciola Lunatria wields her silver claws in the hopes of delivering the land from monsters to usher in peace—at least, until she meets Bilqis Draco, a first-rate merchant of Mystic Frontier Trading Co.. Through their meeting, Lucciola learns that violence isn't the only solution to the answer she seeks, opening her eyes to a whole new world of possibilities in brokering an age of harmony to the frontier!

(Source: Kodansha)