Is It Wrong to Try to Pick Up Girls in a Dungeon? Minor Myths and Legends, Vol. 2 (light novel) — Fujino Omori

Aiz Wallenstein is a famous swordswoman who spends her days with her fellow adventurers, exploring the vast underground labyrinth beneath Orario known as the Dungeon. This is where she meets a certain boy chasing his dreams. As their paths intersect time and time again over a short several months, an incredible number of stories are born.