Quality Assurance in Another World 3 (manga)

Nikola is just a village girl working at the inn... until the day dragons invade, and she meets Haga, a scholar of everything around him. He's a part of an elite society called the "Seekers," created to address a series of maladies plaguing their usually peaceful world.

But both Nikola and Haga have secrets they hide, ones that will change each other's very lives. Nobody's getting reincaranted here! Check out an isekai from the inside!