この世界は不完全すぎる (Series) favorite_border

Volume 1 synopsis: Haga is a member of a covertly organized expedition unit known as the King's Seekers. These seekers — tasked with investigating every manner of phenomenon in the world and traveling under royal command — are held in high esteem by the common folk. When Haga successfully defends a village from a dragon attack as part of his mission, he ends up crossing paths with a young girl named Nikola, and the two set off to explore the world together. But Haga's true purpose is far removed...