Is It Wrong to Try to Pick Up Girls in a Dungeon?, Vol. 10 (manga)

A monster has spawned on the (supposedly) safe eighteenth floor!
Black Goliath falls upon the Under Resort and its unprepared inhabitants. Has it awoken because the gods have dared to trespass in the Dungeon? Bell, Hestia, and their mismatched team of gods and adventurers prepare to fight this unexpected floor boss…!