Is It Wrong to Try to Pick Up Girls in a Dungeon? Sword Oratoria, Vol. 1 (manga)

Aiz Wallenstein, the Sword Princess, is known as one
of the most powerful warriors from one of the most powerful groups in the city
of Orario: Loki Familia. With them, she ventures into the deepest parts of the
labyrinthine Dungeon beneath the city, stalking the monstrous denizens that lurk
there and vanquishing them with the blazing light of her sword. But when she
meets a certain white-haired boy, the encounter will change both of them
forever...