Is It Wrong to Try to Pick Up Girls in a Dungeon? On the Side: Sword Oratoria, Vol. 16 (manga)

"Loki Familia has breached the halls of Knossos, a man-made underground labyrinth with nasty surprises lurking around every corner. Divided into several groups, the members have their hands full just trying to survive. Bloodied and battered, will Gareth, Finn, and the others be able to escape this living nightmare, or will Knossos be their final resting place. "-