Is It Wrong to Try to Pick Up Girls in a Dungeon? On the Side: Sword Oratoria, Vol. 5 (manga) — Fujino Omori

Aiz has finally done it! After showing her resolve by defeating the Black Skeleton King, Udaeus, she has reached Level Six at long last! But instead of being satisfied, why is she rushing back to the Dungeon?! With no idea as to Aiz's whereabouts, Loki Familia is determined to take action. But there are too few of them available to form a search party, forcing Loki to accept the help of another familia...