Is It Wrong to Try to Pick Up Girls in a Dungeon? On the Side: Sword Oratoria, Vol. 7 (light novel) — Fujino Omori

"Farewell, Loki Familia...and sweet dreams."Back from Port Meren and armed with new information, Loki Familia launches an investigation into the mysterious Daedalus Street. Once they've learned all they can, they plunge into the labyrinth of Knossos with the intent of weeding out the remnants of the Evils. But the dark maze is more hostile than ever, and they must contend with a cursed family, a deep-seated grudge, the last of the Evils' gods, and a certain redheaded woman, all in their most dangerous expedition yet!